Adobe Digital Media Store: Adobe has started selling e-books in order to pump up its PDF format as a viable alternative to formats from Microsoft and Palm. They may be able to fill some of the vacuum left by Barnes and Noble when they left the market.
Fool.com: Death to eBooks?: Too bad. I've quite gotten to like them. "In a surprise move, Barnesandnoble.com ... has stopped selling eBooks. The online retailer is in the process of e-mailing its affiliates to let them know of the program's demise this week." Via SlashDot.
These e-books are PDF files with both copying and printing disabled. Disabling copying defeats the primary purpose of using electronic text, in my opinion.