I've heard talk of dodgy behaviour from Yelp before. See eg. this article: http://www.eastbayexpress.com/ebx/yelp-and-the-business-of-extortion-20/Content?oid=1

I've heard talk of dodgy behaviour from Yelp before. See eg. this article: http://www.eastbayexpress.com/ebx/yelp-and-the-business-of-extortion-20/Content?oid=1176635 http://www.eastbayexpress.com/ebx/yelp-and-the-business-of-e... (via here: http://www.jwz.org/blog/2009/02/yelp-shakedown/ http://www.jwz.org/blog/2009/02/yelp-shakedown/)