The Authors Guild has launched a website, WhoMovedMyBuyButton.com, “which allows authors to keep track of whether Amazon has removed buy buttons from any of their books.”

Although we’ve launched WhoMovedMyBuyButton.com in response to Amazon’s wholesale removal of buy buttons from Macmillan titles, we believe Amazon should be monitored for years to come. Amazon’s developed quite a fondness for employing this draconian tactic (there’s a chronology at the website); it’s only grown bolder with its growing market clout.

Interestingly, the new kid on the e-reader block, ipad, has changed the game by allowing publishers to set their own prices for ebooks. Newser reports that “Hachette has joined Macmillan—and, seemingly, HarperCollins—in demanding control over the pricing of its e-books sold through Amazon…”