Better Than We Know Ourselves: Pitchfork Feature: "So how about predicting what you'll do next? Since the mid-1990s, online music recommendation or music discovery tools have studied our tastes and told us what to buy. And in the past year, several startups have launched with new, more ambitious software that someday may understand us better than we know ourselves."
Covers the same territory as other articles (Last.fm, Pandora, MusicIP/Predixis, etc.), but is a good read from Pitchfork.