Search Engine Land: Yelp cracks down on ‘review rings’ as Google continues to see widespread mapspam

Search Engine Land: Yelp cracks down on ‘review rings’ as Google continues to see widespread mapspam. “Yelp has almost certainly been the most aggressive of the review platforms to take action against spam and review fraud. The company has historically and controversially tried to prevent any form of review solicitation….Now the company is stepping up efforts to stop ‘review rings,’ which have become something of a cottage industry online.”