We'll be seeing a lot more of this as time goes on: Gay and lesbian publisher Alyson Books is no longer going to be selling paper versions of their books. You will only be able to purchase their books as e-books. They're being classy about it, giving their authors the option to back out of their deals if they're uncomfortable with the move:

“Over the next few days Alyson will be reaching out to the authors it has under contract and whose books they have not published to give them the option of getting their rights back or moving ahead with Alyson’s digital program … Alyson has about 24 authors under contract whose books have not yet been released.”

The question is whether a publisher can make an e-book model work. Popular mass-market publisher Dorchester announced a while back that they were making the switch. It's still too soon to tell whether this is a profitable move.