Blogs
Songboom
http://www.songboom.com
SongBoom has reviews and comparisons of the latest music download services on the 'net. If you are looking for an alternative to iTunes or AllOfMP3, then SongBoom should be your starting point. Read reviews of more than 15 different music providers, compare them all side-by-side, and see what regular users have to say about them in the forums.