Upload MP3s and edit them down into ringtones. One-click export to an iPhone-compatible ringtone format. Looks highly illegal, will probably get sued any day now. Too useful to live.

Flash player for a bunch of different media

easy downloads of mostly dubstep mixes

File Manager for MP3 Players. sync your iTunes lib to non-iPods, phones, USB keys, etc.

i say that's quite a nice MP3 Blog Aggregator

free hott mixes

a funky lil' thang

slooooow hip-hop for all y'all tricks

diverse jungle sounds with some other fresh bizness thrown in.

realtime MP3 encoding to a USB keychain or iPod

open source sample material

hip free and legal mp3s