Good luck :) Just be careful and look through the lawsuits Yelp got hit with so you don't get accused of extortion. http://www.huffingtonpost.com/2011/04/02/y

Good luck :) Just be careful and look through the lawsuits Yelp got hit with so you don't get accused of extortion. http://www.huffingtonpost.com/2011/04/02/yelp-extortion-case-dismissed_n_843954.html http://www.huffingtonpost.com/2011/04/02/yelp-extortion-case... At least to me, it seems the simplest solution is to only sell advertising via a 3rd party bidding system where you aren't involved in the sales process and don't initiate contact. [i.e. Moderation of ads is handled by the 3rd party, not you ]