This will also go to Twitter and Tumblr. Twitter usually has a shelf-life of just 7 minutes, but it’s a backlink. If you retweet an image from my feed like this one, then you’re really helping the poster (Amanda in this case) because it becomes a 2nd teir backlink.
Tumblr has a UR of 96 I believe. High 90’s for sure. My point is that even without any time spent there that platform provides some of the best SEO juice out there. SO if you want to build your webite’s UR and Domain Ranking (DR) then you need to share images and links there. :)