http://mobminresources.org/story.php?title=will-addition-of-gifs-help-pinterest-topple-tumblr Pinterest says it will allow desktop users to post and view animated GIFs, and that it will soon make the same feature available to mobile users. That could help Pinterest steal traffic from Tumblr, the social network most associated with GIFs, Sarah Perez writes. Sat, 25 Jan 2014 06:49:38 UTC en