On Monday, Yahoo! announced that it would buy the blogging site Tumblr for $1.1 billion. The first thing CEO Marissa Mayer did on her own Tumblr after the announcement? Post a GIF. Well, you should.

Ever wondered how a key opens a lock? Wonder no more. If this is not one of the best animated GIFs I’ve ever seen, I don’t know what is. First, because it taught me something new. And then, because it ...

More than two decades ago, in 1987, Compuserv developed the Graphics Interface Format, a file that allows users with incompatible PCs to exchange pictures. They dubbed it the GIF, pronounced with a ...