Hm... I don't think it's possible the way you envision it -- I'll explain and we can see if my logic holds or not :)In order to purchase a listing, the buyer must know what that listing is for. One way or another, that information has to be available. The only way to pull off your idea would be to make it conditionally available; conditional on what basis I don't really know: any listing that you've bought being blacked out wouldn't work, and that would just make it even easier to tell what you've bought. A rotating schedule sort of thing would be... strange, and no good at all anyway, since it wouldn't hide the information all the time.I'm afraid the only way I can think of to do this is to make it a sort of invite-only system, where you have to explicitly give access to a buyer before they can actually view what your listing(s) is for. But that limits the pool of potential customers so severely, it doesn't seem viable.I don't know. The whole buyer needing to know what he's buying thing is the issue I think there may not be any decent way around. I suppose you could use a web of trust kind of model, to allow access only to those in your circle or "extended circle" (in the circle of a friend kind of thing). Something like that. The problem there is that you have to bootstrap it somehow, because initially nobody's gonna be in anybody's circle. I guess just prior customers trusting you would be enough to get it going, so long as the participants weren't *all* 100% unfamiliar to everybody.I dunno. Just my thoughts :)