I have just noticed that this forum shares ad revenue. Is this a breach of the adsense TOS??, I would have thought that they would put a clause in that stopped this as it could encourage people to click each others ads. But i can't find anything in the TOS about it and DP is a very respected site so I guess its not a TOS violation.
No, it is not against Google TOS. Otherwise DP and many other forums would have had their accounts banned long ago
AdSense revenue sharing is not against TOS, there was some big discussions about this on the official adsense google group, you should go search the archive for them.
Yeah, even i was worrying about it but later thought that if it was against ToS, this wouldn't have run for long. So easy..
I have asked this question from google and they say its 100% fine, as far as the site where ur ads r shown is not dealing in any illegal thing