Found out about We are Hunted from the 37signal’s Signal vs. Noise Blog, who say, basically, the real draw here, the thing that sets We are Hunted apart from other similar music sites is its large album art. But the S vs. N Blog doesn’t point out what the site actually does. From the We are Hunted homepage:
We Are Hunted is the Online Music Chart. We aggregate social networks, forums, music blogs, Torrents, P2P Networks and Twitter to develop a daily chart of the 99 most popular songs online.
And Signal vs. Noise captions their screen shots to imply that We are Hunted is a music store. While it looks like they do offer the option to buy the playable songs, it seems to me to be more of a Internet music chart.