There is a social networking site for everything. Although I plan to review the big music sites in detail, if you want the ultimate skinny on social networking, check out Mashable, the social networking news blog.

Mashable has it all- from JamJunky, a new site for songwriters looking for collaboration, to FatDoor, a site that lets you meet the neighbors, to Sudokular, for the sudoku crazed people out there.

Hundreds of ways to waste time, make friends, and relish your obscure hobbies. Oh, did I mention that I am a nerd? Totally.