Bradford Cox of Atlas Sound and Deerhunter posts Deerhunter's 2005 album, Carve Your Initials Into the Walls of the Night, for free download.
OH NO! THERE GOES TOKYO! GO GO GODZILLA! (Nearly) every Godzilla soundtrack. (Thanks to my girlfriend for hipping me to this)
Mish Mash Mush A series of mixes from Providence eclectic label Fort Thunder, home of Ninja Versus Wrestler and Forcefield. As part of an aplty amorphous and chaotic "noise" scene, the mixes contain otherwise unreleased music from bands like Lightning Bolt, Mindflayer, 25 Suave, and a bevy of other bands from labels like Load, Animal Disguise and Bulb. Good music with a dirt-simple interface.
Median's Relief! If you like Little Brother, you should like these three free mp3's from Median. He's in the Justus League too and he's got beats from 9th Wonder, hip hop producer of the moment right now.