Ah, the GIF. If you love the Internet, you can't help but love that wonderfully animated, comically compressed image file format. Officially called Graphics Interchange Format, the GIF turns 25 today and has come a long way from its humble GeoCities-plastered beginnings. It's now catnip for the Internet.
The rabble rousers at the World Wildlife Fund (they re-named fake wrestling!) have created a new, PDF-type file format called WWF. It's a file format that CANNOT be printed out. The idea: save as WWF, save a tree.