FaceBook On Facebook a Page's rating is based on multiple sources, such as the reviews and Recommendations people share about business Pages on Facebook.
Google Google Maps allows consumers to write reviews for places they've visited. These reviews and opinions are voluntary. Google doesn’t pay reviewers for adding them to Google Maps.
Yelp Yelp was founded to help people find great local businesses. In addition to reviews, you can use Yelp to find events, lists and to talk with other Yelpers.
