"There really isn't that much money in ad revenue these days unless you can control the market and have truly massive (ala Google's 400+ million searches a day)

"There really isn't that much money in ad revenue these days unless you can control the market and have truly massive (ala Google's 400+ million searches a day)" Backflip studios makes really popular games like Ragdoll Blaster and Paper Toss, and according to their CEO, they have anywhere from 15 million active monthly users. They say in-game ads make them about a half-million a month. Granted, thats is a gigantic install base, but it could scale down nicely to 5 million evernote users, if that is an active monthly number for them. Perhaps they hit the six figures monthly from ads, which is nothing to scoff at, by any means.