I'm selling my FB application on eBay at the moment. I have not sold one before and don't see too many established apps for sale about the net. My app has over 20,000 active monthly users and it has had a lot of interest from owners of CB products in the niche that have contacted me asking for me to sell it. In the last 3 weeks the app has made over $750. If you have sold an app before, how many users did it have, where did you sell it and how much did you get for it? I have had a lot of emails with offers and am not sure whether to take an offer or let the auction run its course at the moment.