Science-fiction writer and Digital Rights activist Cory Doctorow spent a few months shopping around for ebook sellers that would enable authors and publishers to opt out of DRMs. He relates for Publishers Weekly the experience and what he learned from it:
This led me to formulate something I grandiosely call Doctorow’s First Law: «Any time someone puts a lock on something that belongs to you, and won’t give you a key, they’re not doing it for your benefit.»
(Source: Boing Boing.)
Oh, and you want to know which on-line ebook sellers said yes and which refused to let go of DRMs at any price? In the «yes» camp: Amazon, Barnes & Noble, Kobo. And for the «no»: Apple and Sony.