Someone already beat me to the Digg, but there's a feature length article over at tech supersite Gizmodo called
Radiohead, Saul Williams, and the inevitable rise and liberation of the music industry. It touches on the more subtle points surrounding the way
Niggy Tardust! was released, particularly in comparison to Radiohead's showier, if less rewarding presentation of their album. Give the story a read through, Digg it, leave a comment, and tell your friends.