Here is a very quick list of the Top 10 Hip Hop / Rap Blogs you can submit your music to. This list is just for specialised Hip Hop and Rap Blogs by Individuals or small businesses.

Rap Radar

The Boom Box

Hip Hop Wired

Spinrilla

Rap Up

Pigeons and Planes

Dat Piff

XXL Mag

Complex

World Star Hip Hop