Forum Moderators: martinibuster
No Google ad may be placed on any non-content-based pages. This includes error, login, registration, "thank you" or welcome pages.
Last time I saw some ads on forum sites, and I was just curious to email Google and ask them if they changed their policy to allow ads to run on forum sites, and gave them a few forum web sites that are running adsenses for example. They replied me and told me that adsense are not allowed to run on forum sites. I came back to the sites where I gave google as examples of forum site that running adsense, the ads were no longer there. I think they were asked to take it off.