Resumen de Manipulation of the crowd.
The article discusses research which suggests that web sites which feature consumer generated ratings of books, hotels, restaurants and businesses may be biased and not as trustworthy as consumers believe. A discussion of several cases in which ratings of products or services have been deliberately altered by people familiar with or employed by businesses that market them is presented. A legal case involving Yelp Inc.'s business review web site yelp.com, which centered on accusations that the site was running a digital extortion scheme, is discussed.
