21 Places to Go When You're Sick of Facebook
Last.fm
Who it's for: Music lovers, especially the snobs.
What we like: Are you bored with your current music library but don't have the time to seek out new jams? Like an advanced Pandora, Last.fm provides music recommendations based on your tastes by keeping track of what you're listening to. You can interact with other users, see their favorites, stream songs, and view events and concerts in your area. If you're a bit paranoid about letting the site see what's on your comp, just make sure to stick to the streaming radio station feature and the 100,000-plus free downloads offered by artists and labels.