It would be interesting if people could buy ads for the side areas of the browser that are largely empty now, and have any such ad be done by purchasing with steem or sbd. Then perhaps have that payment be recycled back into the reward pool. This way you could have the normal inflationary reward pool + the additions to that pool from ads. This way everyone in the community would see benefit from ads, and the reward pool would not be 100% inflationary as it currently is.