Weed: file-sharing and multi-level marketing

Slashdot is reporting that Sir Mix-A-Lot is using Weed to distribute music. Weed is a rather nifty sounding DRM/file-sharing combo that lets you preview music. If you buy it and share it, you get a cut of the sales of your shared music. While I find DRM generally annoying, at least here is someone trying to do something truly innovative with it.