1. Dat Piff
datpiff.com
Mostly mix tapes from gangster rap artists and trap artists to up and coming rappers.
2. Good Music All Day
goodmusicallday.com
Includes music from college rappers to college bands, it's pretty college.
3. Kanye To The
kanyetothe.com
Go to the music thread in here and get updates on what artists are making what. Includes some downloads, YouTube clips from new music and music industry news.
4. Beatport
beatport.com
If you like electronic music then this is your spot. They do charge for music, but this is where all the major DJs post their stuff and there are some great remixes and charts from the latest artists and record labels.