Music

Overclocked Remix-A site where people share their remixes of music for videogames.

Allmusic-Consider it the IMDB of the internet music world.

CDex-Buy a new CD?  Here's a good program for compressing into mp3, ogg, aac or various other formats.

OGG Vorbis-Official site of the patent free audio compression format

FLAC-Free Lossless Audio Codec.  Kind of like a .Zip format specifically for audio.  Mostly for professional musicians.

Quintessential Player-A music player.  I still like Winamp for playback but QP allows you to encode tracks from CD's free (Plug-In required for Vorbis).  It's also CDDB capable.