Robots.txt is not an appropriate or effective way of blocking sensitive or confidential material. It only instructs well-behaved crawlers that the pages are not for them, but it does not prevent your server from delivering those pages to a browser that requests them. One reason is that search engines could still reference the URLs you block (showing just the URL, no title or snippet) if there happen to be links to those URLs somewhere on the Internet (like referrer logs). Also, non-compliant or rogue search engines that don't acknowledge the Robots Exclusion Standard could disobey the instructions of your robots.txt. Finally, a curious user could examine the directories or subdirectories in your robots.txt file and guess the URL of the content that you don't want seen.

Keep resources crawlable. Blocking page resources can give Google an incomplete picture of your website. This often happens when your robots.txt file is blocking access to some or all of your page resources. If Googlebot doesn't have access to a page's resources, such as CSS, JavaScript, or images, we may not detect that it's built to display and work well on a mobile browser. In other words, we may not detect that the page is "mobile-friendly," and therefore not properly serve it to mobile searchers.
The development of digital marketing is inseparable from technology development. One of the key points in the start of was in 1971, where Ray Tomlinson sent the very first email and his technology set the platform to allow people to send and receive files through different machines.[8] However, the more recognisable period as being the start of Digital Marketing is 1990 as this was where the Archie search engine was created as an index for FTP sites. In the 1980s, the storage capacity of computer was already big enough to store huge volumes of customer information. Companies started choosing online techniques, such as database marketing, rather than limited list broker.[9] This kind of databases allowed companies to track customers' information more effectively, thus transforming the relationship between buyer and seller. However, the manual process was not so efficient.
Facebook pages are far more detailed than Twitter accounts. They allow a product to provide videos, photos, longer descriptions, and testimonials where followers can comment on the product pages for others to see. Facebook can link back to the product's Twitter page, as well as send out event reminders. As of May 2015, 93% of businesses marketers use Facebook to promote their brand.[36] A study from 2011 attributed 84% of "engagement" or clicks and likes that link back to Facebook advertising.[37] By 2014, Facebook had restricted the content published from business and brand pages. Adjustments in Facebook algorithms have reduced the audience for non-paying business pages (that have at least 500,000 "Likes") from 16% in 2012 down to 2% in February 2014.[38] [39][40]
Another disadvantage is that even an individual or small group of people can harm image of an established brand. For instance Dopplegnager is a term that is used to disapprove an image about a certain brand that is spread by anti-brand activists, bloggers, and opinion leaders. The word Doppelganger is a combination of two German words Doppel (double) and Ganger (walker), thus it means double walker or as in English it is said alter ego. Generally brand creates images for itself to emotionally appeal to their customers. However some would disagree with this image and make alterations to this image and present in funny or cynical way, hence distorting the brand image, hence creating a Doppelganger image, blog or content (Rindfleisch, 2016).
Instead, invest in an external hard drive like one of the Lacie Rugged models. External hard drives come in a variety of sizes and port options (Thunderbolt, USB 3.0, etc.). Multimedia creators will use the phrase “working off of an external” to describe storing all of their project files on this hard drive. This method also makes it easier to collaborate with teammates because you can easily share the drive.
This course examines how digital tools, such as the Internet, smartphones, and 3D printing, are revolutionizing the world of marketing by shifting the balance of power from firms to consumers. Marketing in a Digital World is one of the most popular courses on Coursera with over 150,000 Learners and is rated by Class Central as one of the Top 50 MOOCs of All Time (https://www.class-central.com/report/top-moocs/). This course is part of the iMBA offered by the University of Illinois, a flexible, fully-accredited online MBA at an incredibly competitive price. For more information, please see the Resource page in this course and onlinemba.illinois.edu.

But while you're maintaining the fun level on set, remain vigilant. It's your job to pay attention to the little things, like making sure all of the mics are on or noticing if the lighting changes. Record each section many times and have your talent play with inflections. When you think they've nailed the shot … get just one more. At this point, your talent is already on a roll, and options will help tremendously during editing.


Videos allow you to increase the time spent by visitors on your site. Thus, longer exposure builds trust and signals search engines that your site has good content. Moovly gives us whopping statistics: You’re 53 times more likely show up first on Google if you have a video embedded on your website. Since Google now owns YouTube, there has been a significant increase in how much videos affect your search engine rank.
The platform of social media is another channel or site that business' and brands must seek to influence the content of. In contrast with pre-Internet marketing, such as TV ads and newspaper ads, in which the marketer controlled all aspects of the ad, with social media, users are free to post comments right below an online ad or an online post by a company about its product. Companies are increasing using their social media strategy as part of their traditional marketing effort using magazines, newspapers, radio advertisements, television advertisements. Since in the 2010s, media consumers are often using multiple platforms at the same time (e.g., surfing the Internet on a tablet while watching a streaming TV show), marketing content needs to be consistent across all platforms, whether traditional or new media. Heath (2006) wrote about the extent of attention businesses should give to their social media sites. It is about finding a balance between frequently posting but not over posting. There is a lot more attention to be paid towards social media sites because people need updates to gain brand recognition. Therefore, a lot more content is need and this can often be unplanned content.[86]
Snapchat is a popular messaging and picture exchanging application that was created in 2011 by three students at Stanford University named Evan Spiegel, Bobby Murphy, and Reggie Brown. The application was first developed to allow users to message back and forth and to also send photographs that are only available from 1–10 seconds until they are no longer available. The app was an instant hit with social media members and today there are up to 158 million people using snapchat every single day.[60] It is also estimated that Snapchat users are opening the application approximately 18 times per day, which means users are on the app for about 25–30 minutes per day.[60]
Facebook had an estimated 144.27 million views in 2016, approximately 12.9 million per month.[109] Despite this high volume of traffic, very little has been done to protect the millions of users who log on to Facebook and other social media platforms each month. President Barack Obama tried to work with the Federal Trade Commission (FTC) to attempt to regulate data mining. He proposed the Privacy Bill of Rights, which would protect the average user from having their private information downloaded and shared with third party companies. The proposed laws would give the consumer more control over what information companies can collect.[107] President Obama was unable to pass most of these laws through congress, and it is unsure what President Trump will do with regards to social media marketing ethics.

"As an owner of a small search engine marketing company, having access to the latest info on SEO is critical. I have had consultation phone calls with many of the top SEO'S and have sent my employees to training at one of the very top search marketing companies. Talking to Jim has been the best experience yet. He doesn't beat around the bush and tells you the real deal on getting organic ranks. We were stumped in particular on link building despite doing it for many years. Even after researching through forums and asking questions at the search strategies conference, we still did not have the whole picture and a practical set of white hat techniques to employ. Jim solved that among other technical issues our programmer had. I am truly looking forward to our next chat." John M.
Another example when the “nofollow" attribute can come handy are widget links. If you are using a third party's widget to enrich the experience of your site and engage users, check if it contains any links that you did not intend to place on your site along with the widget. Some widgets may add links to your site which are not your editorial choice and contain anchor text that you as a webmaster may not control. If removing such unwanted links from the widget is not possible, you can always disable them with “nofollow" attribute. If you create a widget for functionality or content that you provide, make sure to include the nofollow on links in the default code snippet.
Video advertising is becoming more and more affordable and widespread. Video adoption grows partly because advances in technology but also because it’s easy to spread across the globe. Making marketing videos for your business requires creativity and knowledge of human psychology. The cocktail of these components makes it possible to create real miracles of advertising at minimal cost.

With offline marketing, it's very difficult to tell how people are interacting with your brand before they have an interaction with a salesperson or make a purchase. With digital marketing, you can identify trends and patterns in people's behavior before they've reached the final stage in their buyer's journey, meaning you can make more informed decisions about how to attract them to your website right at the top of the marketing funnel.

True North Social is an agency founded on creating a digital presence for companies just like yours.Our services are geared toward a singular focus- creating brand awareness, customer loyalty, and ROI. We design outstanding websites. We create engaging social media channels. We run SEO and PPC ad campaigns that ensure your customers find you. If you're ready to get serious about digital marketing, True North Social is ready to join forces.
But there is more… there is also the need to blend what is “optimal” with what is “realistically acceptable” in a basket of digital marketing tools. In particular, SEOs have a tendency to think and often work in isolation. They do not appreciate many of the issues surrounding development processes such as Agile, Scrum, and Lean methodologies. Not understanding these wider engineering concepts, SEOs’ implementations continually lose out to other “more urgent” projects.
Social media marketing involves the use of social networks, consumer's online brand-related activities (COBRA) and electronic word of mouth (eWOM)[75][76] to successfully advertise online. Social networks such as Facebook and Twitter provide advertisers with information about the likes and dislikes of their consumers.[61] This technique is crucial, as it provides the businesses with a "target audience".[61] With social networks, information relevant to the user's likes is available to businesses; who then advertise accordingly. Activities such as uploading a picture of your "new Converse sneakers to Facebook[75]" is an example of a COBRA.[75][76] Electronic recommendations and appraisals are a convenient manner to have a product promoted via "consumer-to-consumer interactions.[75] An example of eWOM would be an online hotel review;[77] the hotel company can have two possible outcomes based on their service. A good service would result in a positive review which gets the hotel free advertising via social media. However, a poor service will result in a negative consumer review which can potentially harm the company's reputation[78].

Now imagine you had that brochure on your website instead. You can measure exactly how many people viewed the page where it's hosted, and you can collect the contact details of those who download it by using forms. Not only can you measure how many people are engaging with your content, but you're also generating qualified leads when people download it.
For example, I save the comments I write in my email drafts folder and I use the subject line as a label for the topic. After I’ve saved the drafts, I can come back and turn these comments into blog posts. I can even make the comment itself the blog post. After all, it’s still my writing. (Check out Meddle, which makes this whole process easy and allows you to share/syndicate your comments to your social platforms with a few easy clicks.)
Since social media marketing first came to be, strategists and markets have been getting smarter and more careful with the way they go about collecting information and distributing advertisements. With the presence of data collecting companies, there is no longer a need to target specific audiences. This can be seen as a large ethical gray area. For many users, this is a breach of privacy, but there are no laws that prevent these companies from using the information provided on their websites. Companies like Equifax, Inc., TransUnion Corp, and LexisNexis Group thrive on collecting and sharing personal information of social media users.[107] In 2012, Facebook purchased information from 70 million households from a third party company called Datalogix. Facebook later revealed that they purchased the information in order to create a more efficient advertising service.[108]
Online marketing can also be crowded and competitive. Although the opportunities to provide goods and services in both local and far-reaching markets is empowering, the competition can be significant. Companies investing in online marketing may find visitors’ attention is difficult to capture due to the number of business also marketing their products and services online. Marketers must develop a balance of building a unique value proposition and brand voice as they test and build marketing campaigns on various channels.

Simply put, search engine optimization (SEO) is the process of optimizing the content, technical set-up, and reach of your website so that your pages appear at the top of a search engine result for a specific set of keyword terms. Ultimately, the goal is to attract visitors to your website when they search for products, services, or information related to your business.

The biggest problem that most people have when trying to learn anything to do with driving more traffic to their website or boosting their visibility across a variety of online mediums, is that they try to do the least amount of work for the greatest return. They cut corners and they take shortcuts. Because of that, they fail. Today, if you're serious about marketing anything on the web, you have to gain Google's trust.


Today, with nearly half the world's population wired to the internet, the ever-increasing connectivity has created global shifts in strategic thinking and positioning, disrupting industry after industry, sector after sector. Seemingly, with each passing day, some new technological tool emerges that revolutionizes our lives, further deepening and embedding our dependence on the world wide web.
However, if you are seasoned online marketer, and you've built a substantial following, then marketing as an affiliate might be the right fit. Jason Stone from Millionaire Mentor has built a seven-figure business with affiliate marketing, while David Sharpe from Legendary Marketer has built up an eight-figure business by creating an army of affiliates that market products in collaboration with his team.
Completion rate: Completion rate is the number of people who completed your video divided by the number of people who played it. Completion rate, and other engagement metrics, are a great way to gauge a viewer's reaction to your video. Do you have a low completion rate? Are people all dropping off at a certain point? This might be a sign that your video content is not resonating with your target audience.
A navigational page is a simple page on your site that displays the structure of your website, and usually consists of a hierarchical listing of the pages on your site. Visitors may visit this page if they are having problems finding pages on your site. While search engines will also visit this page, getting good crawl coverage of the pages on your site, it's mainly aimed at human visitors.
Social media marketing is the use of social media platforms and websites to promote a product or service.[1] Although the terms e-marketing and digital marketing are still dominant in academia, social media marketing is becoming more popular for both practitioners and researchers.[2] Most social media platforms have built-in data analytics tools, which enable companies to track the progress, success, and engagement of ad campaigns. Companies address a range of stakeholders through social media marketing, including current and potential customers, current and potential employees, journalists, bloggers, and the general public. On a strategic level, social media marketing includes the management of a marketing campaign, governance, setting the scope (e.g. more active or passive use) and the establishment of a firm's desired social media "culture" and "tone."

Just think about any relationship for a moment. How long you've known a person is incredibly important. It's not the be-all-end-all, but it is fundamental to trust. If you've known someone for years and years and other people that you know who you already trust can vouch for that person, then you're far more likely to trust them, right? But if you've just met someone, and haven't really vetted them so to speak, how can you possibly trust them?
What does aperture mean for your video? When a lot of light comes into the camera (with a low f-stop number), you get a brighter image and a shallow depth of field. This is great for when you want your subject to stand out against a background. When less light comes into the camera (with a high f-stop number), you get what's called deep depth of field and are able to maintain focus across a larger portion of your frame.
A breadcrumb is a row of internal links at the top or bottom of the page that allows visitors to quickly navigate back to a previous section or the root page. Many breadcrumbs have the most general page (usually the root page) as the first, leftmost link and list the more specific sections out to the right. We recommend using breadcrumb structured data markup28 when showing breadcrumbs.
Digital marketing activity is still growing across the world according to the headline global marketing index. A study published in September 2018, found that global outlays on digital marketing tactics are approaching $100 billion.[40] Digital media continues to rapidly grow; while the marketing budgets are expanding, traditional media is declining (World Economics, 2015).[41] Digital media helps brands reach consumers to engage with their product or service in a personalised way. Five areas, which are outlined as current industry practices that are often ineffective are prioritizing clicks, balancing search and display, understanding mobiles, targeting, viewability, brand safety and invalid traffic, and cross-platform measurement (Whiteside, 2016).[42] Why these practices are ineffective and some ways around making these aspects effective are discussed surrounding the following points.
All of these questions can help determine what type of video you should make and where you should post it. For example, if your target audience is not familiar with your company, you probably want to make a video that focuses on brand awareness before producing an in-depth, product video. You'll also want to host your video on a site that already has a large reach, like YouTube. 
When would this be useful? If your site has a blog with public commenting turned on, links within those comments could pass your reputation to pages that you may not be comfortable vouching for. Blog comment areas on pages are highly susceptible to comment spam. Nofollowing these user-added links ensures that you're not giving your page's hard-earned reputation to a spammy site.
Planned content begins with the creative/marketing team generating their ideas, once they have completed their ideas they send them off for approval. There is two general ways of doing so. The first is where each sector approves the plan one after another, editor, brand, followed by the legal team (Brito, 2013). Sectors may differ depending on the size and philosophy of the business. The second is where each sector is given 24 hours (or such designated time) to sign off or disapprove. If no action is given within the 24-hour period the original plan is implemented. Planned content is often noticeable to customers and is un-original or lacks excitement but is also a safer option to avoid unnecessary backlash from the public.[87] Both routes for planned content are time consuming as in the above; the first way to approval takes 72 hours to be approved. Although the second route can be significantly shorter it also holds more risk particularly in the legal department.
Your iPhone might do a great job of focusing on the subject when you take photos, when when it comes to video, the camera will continue adjusting and re-adjusting as you move around the scene. To solve this problem, lock the exposure before you press record. Hold your finger down on the subject of the video until a yellow box appears with the words “AE/AF Lock”.
Balancing search and display for digital display ads are important; marketers tend to look at the last search and attribute all of the effectiveness to this. This then disregards other marketing efforts, which establish brand value within the consumers mind. ComScore determined through drawing on data online, produced by over one hundred multichannel retailers that digital display marketing poses strengths when compared with or positioned alongside, paid search (Whiteside, 2016).[42] This is why it is advised that when someone clicks on a display ad the company opens a landing page, not its home page. A landing page typically has something to draw the customer in to search beyond this page. Things such as free offers that the consumer can obtain through giving the company contact information so that they can use retargeting communication strategies (Square2Marketing, 2012).[43] Commonly marketers see increased sales among people exposed to a search ad. But the fact of how many people you can reach with a display campaign compared to a search campaign should be considered. Multichannel retailers have an increased reach if the display is considered in synergy with search campaigns. Overall both search and display aspects are valued as display campaigns build awareness for the brand so that more people are likely to click on these digital ads when running a search campaign (Whiteside, 2016).[42]
According to Statistica, 76% of the U.S. population has at least one social networking profile and by 2020 the number of worldwide users of social media is expected to reach 2.95 billion (650 million of these from China alone). Of the social media platforms, Facebook is by far the most dominant - as of the end of the second quarter of 2018 Facebook had approximately 2.23 billion active users worldwide (Statistica). Mobile devices have become the dominant platform for Facebook usage - 68% of time spent on Facebook originates from mobile devices.

At this point, the consumer is weighing their options and deciding on the purchase. Therefore, the goal of this kind of video is to make your audience visualize themselves using your product or service — and thriving. There's a reason 4X as many customers would rather watch a video about a product than read about it. Videos are able to display functionality and leverage emotions in ways a product description never could.

At this point, the consumer is weighing their options and deciding on the purchase. Therefore, the goal of this kind of video is to make your audience visualize themselves using your product or service — and thriving. There's a reason 4X as many customers would rather watch a video about a product than read about it. Videos are able to display functionality and leverage emotions in ways a product description never could.
YouTube is another popular avenue; advertisements are done in a way to suit the target audience. The type of language used in the commercials and the ideas used to promote the product reflect the audience's style and taste. Also, the ads on this platform are usually in sync with the content of the video requested, this is another advantage YouTube brings for advertisers. Certain ads are presented with certain videos since the content is relevant. Promotional opportunities such as sponsoring a video is also possible on YouTube, "for example, a user who searches for a YouTube video on dog training may be presented with a sponsored video from a dog toy company in results along with other videos."[61] YouTube also enable publishers to earn money through its YouTube Partner Program. Companies can pay YouTube for a special "channel" which promotes the companies products or services.
App.net Avatars United Bolt Capazoo eConozco Emojli Eyegroove FitFinder Formspring FriendFeed Friends Reunited Friendster Grono.net Google+ Google Buzz Heello Hyves iTunes Ping iWiW Jaiku LunarStorm Me2day Meerkat Mobli Mugshot Musical.ly Natter Social Network Netlog Orkut Pheed Piczo PlanetAll Posterous Pownce Qaiku SixDegrees.com So.cl Surfbook tbh Tribe.net Tsū tvtag Vine Windows Live Spaces Wretch Yahoo! 360° Yahoo! Kickstart Yahoo! Mash Yahoo! Meme Yik Yak
“In a prior paper, we found that emotion plays a big role in which New York Times articles make the most emailed list. But interestingly, we found that while articles evoking more positive emotions were generally more viral, some negative emotions like anxiety and anger actually increased transmission while others like sadness decreased it. In trying to understand why, it seemed like arousal might be a key factor,” says Berger,[3] the Joseph G. Campbell Jr. Assistant Professor of Marketing at the University of Pennsylvania.
“In a prior paper, we found that emotion plays a big role in which New York Times articles make the most emailed list. But interestingly, we found that while articles evoking more positive emotions were generally more viral, some negative emotions like anxiety and anger actually increased transmission while others like sadness decreased it. In trying to understand why, it seemed like arousal might be a key factor,” says Berger,[3] the Joseph G. Campbell Jr. Assistant Professor of Marketing at the University of Pennsylvania.
At this point, the consumer is weighing their options and deciding on the purchase. Therefore, the goal of this kind of video is to make your audience visualize themselves using your product or service — and thriving. There's a reason 4X as many customers would rather watch a video about a product than read about it. Videos are able to display functionality and leverage emotions in ways a product description never could.
Online reviews, then, have become another form of internet marketing that small businesses can't afford to ignore. While many small businesses think that they can't do anything about online reviews, that's not true. Just by actively encouraging customers to post reviews about their experience small businesses can weight online reviews positively. Sixty-eight percent of consumers left a local business review when asked. So assuming a business's products or services are not subpar, unfair negative reviews will get buried by reviews by happier customers.
Next, place the fill light at a 45-degree angle on the other side and lift it close to or just above eye level. The purpose of the fill is to soften the shadows created by the key, but without getting rid of them completely. Therefore, the fill should be dimmer than the key light. If you have to use the same type of light for both, scoot the fill back and diffuse it by clipping a clear shower curtain onto the clamp light with clothes pins.
Find a Location. Decide on a spot to record. If you can't go to a professional studio, try to pick a quiet room away from distracting external sounds like sirens, opening and closing doors, and people talking on the phone. Read your script aloud, and pay attention to the room's acoustics. Does your voice echo or sound muffled? If so, consider recording in a different space or adding furniture to fill in the room.
Thanks to its viral nature, simple accessibility and built-in value, video marketing stands out as a smart way to approach content marketing in 2017 and beyond. Video marketing is an incredible way to create content that is personal and has a real impact on your audience. It has an incomparable ability to create emotion driven sales – and sales are always personal on some level. Buyers want to feel good about their choice, and video marketing, when done correctly, is the best way to create this feeling.
1. Increased Brand Recognition. Every opportunity you have to syndicate your content and increase your visibility is valuable. Your social media networks are just new channels for your brand’s voice and content. This is important because it simultaneously makes you easier and more accessible for new customers, and makes you more familiar and recognizable for existing customers. For example, a frequent Twitter user could hear about your company for the first time only after stumbling upon it in a newsfeed. Or, an otherwise apathetic customer might become better acquainted with your brand after seeing your presence on multiple networks.
In the study, Berger suggests that feeling fearful, angry, or amused drives people to share news and information. These types of emotions are characterized by high arousal and action, as opposed to emotions like sadness or contentment, which are characterized by low arousal or inaction. “If something makes you angry as opposed to sad, for example, you’re more likely to share it with your family and friends because you’re fired up,” continues Berger.
There are a lot of fantastic points in this article. Video is absolutely the way to go because of just how engaging it is with customers. But when dealing with mobile there are a couple things that you need to make sure you are doing. You need to capture their attention early since attention span on mobile (especially on apps like Facebook) is pretty low. Design the video for sound-off viewing with things like subtitles. Have a clear call to action at the end of your video. The last thing is to plan for vertical viewing since “people are 67% more likely to watch the full length of square videos than they are to watch horizontal ones.” (source: https://sundaysky.com/blog/5-mobile-video-best-practices/ )
However, if you're going to understand online marketing, you have to understand the importance of building Google's trust. There are three core components involved here. These three core components are like the pillars of trust that comprise all of Google's 200+ ranking factor rules. Each of those rules can be categorized and cataloged into one of these three pillars of trust. If you want to rank on the first page or in the first spot, you need to focus on all three, and not just one or two out of three.
However, if you are seasoned online marketer, and you've built a substantial following, then marketing as an affiliate might be the right fit. Jason Stone from Millionaire Mentor has built a seven-figure business with affiliate marketing, while David Sharpe from Legendary Marketer has built up an eight-figure business by creating an army of affiliates that market products in collaboration with his team.

There are endless platforms for video marketing. YouTube, broadcast television, video boards and street marketing, you name it. The possibilities are endless. With a smartphone, consumers can access online video anytime, anywhere. The same is not true with traditional, paper marketing. With video, you can reach your audience wherever they are in a cost-effective way.
Using Dr Dave Chaffey's approach, the digital marketing planning (DMP) has three main stages: Opportunity, Strategy and Action. He suggests that any business looking to implement a successful digital marketing strategy must structure their plan by looking at opportunity, strategy and action. This generic strategic approach often has phases of situation review, goal setting, strategy formulation, resource allocation and monitoring.[59]
Many of the classic SEO elements still hold a lot of weight, things like incoming links and internal structures so we’re having to optimize for those but at the same time most see the writing on the wall – AI is pushing its way into the algorithm and with it an increased ability for Google to understand a user’s intent and whether a page meets that intent and deliver that as a result that irrespective of many of those classic signals.
In order to engage customers, retailers must shift from a linear marketing approach of one-way communication to a value exchange model of mutual dialogue and benefit-sharing between provider and consumer.[21] Exchanges are more non-linear, free flowing, and both one-to-many or one-on-one.[5] The spread of information and awareness can occur across numerous channels, such as the blogosphere, YouTube, Facebook, Instagram, Snapchat, Pinterest, and a variety of other platforms. Online communities and social networks allow individuals to easily create content and publicly publish their opinions, experiences, and thoughts and feelings about many topics and products, hyper-accelerating the diffusion of information.[22]
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