Numerous online business review websites, including Angie's List, Yelp, Porch and Google+ Local, provide typically reliable business ratings and reviews, according to Consumer Reports. However, some of these sites may contain some elements of biased reviews or paid sponsor listings.
Each different business review and ratings site has its advantages and flaws, Consumer Reports explains. Some sites, such as Yelp, are popular among users for providing a wide variety of feedback for businesses, but the openness of user-generated content can sometimes produce biased or skewed results. Other sites, such as Consumers' Checkbook, provide involuntary ratings to promote less bias, but this translates into fewer reviews, which narrows the scope. The Better Business Bureau website provides performance ratings for many businesses, but user-posted feedback doesn't factor into the ratings.