The Marketing Research website Emarketer recently published an article that claimed that "user" reviews are now the single most important aspect in determining how well a product will sell. People are beginning to move away to ‘expert' reviews as they tend to be biased, self-promoting or prejudiced and instead ‘user' reviews are becoming more and more popular in the advertising war. Over 50% of e-buyers said that they considered user reviews to be the deciding factor on whether or not to buy a product.