A fun website where fans go just to be fans of TV, movies, music, etc. It's about sharing favorite images, videos, and brief opinions - that's what makes it more fun than websites like DeviantArt or LiveJournal. You don't have to pretend to be an artist or writer to enjoy Fanpop. There are plenty of rabid fans constantly posting content, but it's a lot easier to ignore on Fanpop.
After a mind-numbing day at work, I check out the Sherlock updates on Fanpop for a few minutes.