Pitchfork's 100 best of 2006 (many with free downloads)

Indie review site posts it's list of the top 100 of the year. Not everything comes with a download but many do (I managed to grab 66 songs in just a couple of minutes using down-them-all and firefox.

http://pitchforkmedia.com/article/feature/40070/Staff_List_The_Top_100_Tracks_of_2006/page_1