Google Adsense is one of the strictest advertising companies around, but also one of the highest-paying. You can't cheat google, they are the boss, as they hold the cash. I have a concern, involving link-shortening services such as Adf.ly and Linkbucks. These services allow users to shorten long links into short links, while forcing visitors to wait a few seconds and watch an ad during every transition. The users get paid a small amount for each transition. As a website owner, you are able to advertise your own websites services during these transitions, for a very low price (Incredible deals such as $1 for 1000 ad views) Would this be OK with Adsense? I know they detest PTC traffic but this isn't PTC. It's one of the terms in the gray area.