Dredd13 writes "Amazon.Com announced today that they are rethinking their position on Purchase Circles. They are going to permit people to remove their purchases from being added to Purchase Circles, as well as allowing companies to opt-out of the Purchase Circle listings. Personally, I think that it should be explicitly opt-in for companies, because it is far too easy for a company to have its secrets unknowingly leaked to the world via its book purchases. If a precedent is set allowing Amazon.Com to do this, then before a company allows purchases from an online retailer, they may have to spend time and energy researching the company making sure silly things like Purchase Circles don't affect them. " Opt-out sure is an interesting choice. I know one of my old employers is actually quite upset by the whole idea of purchase circles.