Gonna get this.
Trent Reznor's doing good things with internet releasing at the moment. He did a similar thing with his Saul Williams collaboration album last year.
for free mp3 compilations (inc. rare tracks) from:
J Dilla, MF Grimm, Mr. Lif, Poetic aka Grym Reaper, Kool G Rap, RA the Rugged Man, Shabazz, Hell Razah, Timbo King, Jus Allah, Warcloud, Breeze Brewin, Kid Capri, Count Bass D, Insight and more...