One of the emerging genres in the network is the reviews. In fact, one could say that leads being an emerging genre for years, but the truth are that as time goes popularity also is increasing. Consumers (and some specialized media) publish full articles of opinion about the products they consume and, above all, produce videos that show the characteristics of these products and services.

YouTube is full of testimonials where someone explains his experience with this product and which visits this content and reception of them never ceases to be positive. Consumers, the opinions of others love and before buying a product they feel increasingly tempted to look at what others have. Who has not sought each other’s opinion before giving the final ok to shopping, and who has not analyzed in a YouTube video two products before settling on one?