Derek Sivers has sold online indie retailer CD Baby to CD manufacturer Disc Makers. According to Sivers' blog:
"The CD Baby staff, location, name, and everything else will stay the same, but I think you’ll start to notice more attention given to improvements that help you sell more music."
Sivers revolutionized how d.i.y. artists sell music simply by charging then fairly and paying them weekly. It's not clear exactly what Part II for Sivers will be, but its sure to be both music related and interesting. There are some hints here. My personal favorite is Muckwork. It's "Four Hour Work Week" meets the music business and I'm already on the waiting list.