I have a weird fascination with animated gifs, something I may have spread to my classmates in grad school since two of them made animated gif Tumblrs for a spell. I presented on the topic of animated gif Tumblrs last year at a conference, on a session centered around the TV show Mystery Science Theater 3000. So I am excited about the GifGif project at MIT that is attempting to "map the emotional language of gifs" and create a way for people to explore and search for gifs based on emotions rather than tags (or perhaps even a certain show, film or video).
The emotions are pretty simple so far. The site is run on a voting system where visitors vote on which of the two gifs best expresses a particular emotion. When the site was first promoted a month or so ago, I voted on over a thousand gif pairs...because it was a slow day at work. It's an addictive and easy way to pass the time.