An example is: 7min for iOS has badges and achievements. You should look at the companies that Badgeville or someone similar has worked on. Amazon has the layer

An example is: 7min for iOS has badges and achievements. You should look at the companies that Badgeville or someone similar has worked on. Amazon has the layer of highlighting and the percentage you've read and that can be gamified and sold to them. Watching TV shows and series has been gamified by apps like GetGlue. Civic participation is already being gamified. It's highly saturated.