Another reason is that if you're using an image as a link, the alt text for that image will be treated similarly to the anchor text of a text link. However, we don't recommend using too many images for links in your site's navigation when text links could serve the same purpose. Lastly, optimizing your image filenames and alt text makes it easier for image search projects like Google Image Search to better understand your images.
Because it appeared quickly, social media has developed a reputation by some for being a passing marketing interest, and therefore, an unprofitable one. The statistics, however, illustrate a different picture. According to Hubspot, 92% of marketers in 2014 claimed that social media marketing was important for their business, with 80% indicating their efforts increased traffic to their websites. And according to Social Media Examiner, 97% of marketers are currently participating in social media—but 85% of participants aren’t sure what social media tools are the best to use.
Sponsored radar – Radar picks up exceptional posts from the whole Tumblr community based on their originality and creativity. It is placed on the right side next to the Dashboard, and it typically earns 120 million daily impressions. Sponsored radar allows advertisers to place their posts there to have an opportunity to earn new followers, reblogs, and likes.
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. https://www.pinterest.com/BusinessInsightsBiz/