Shoppers read reviews. About 95% of them, in fact. And 57% of consumers will only use a business if it has 4 or more stars. You might think that having negative reviews is a sale killer. The opposite is actually true. Having negative reviews can often be positive. It's shown that products without negative reviews are seen as censored and, in turn, shoppers will assume the positive reviews are fake. Depending on website functionality, ecommerce sites can use plugins from the most popular review platforms including Yelp, Foursquare, and Facebook.