Do you think this could be a good idea? If you bought adspace on a site only to display your google ads. Anybody doing this?
I did this for a while, actually it was a barter. I updated their content and they allowed me a box and a tower. I think I made slightly less then my billable rate but it help me get started with and keep interested in Adsense. It seems to be OK with Google. I looked into it over a year ago and it seems that you only need the rights (owned or bought) to the ad space to put your ad there.