According to consumer research, 70 percent of people trust brand recommendations from their friends. The same can be said for books too. How many times have we picked up a book — either at the library, book store or online — based on how well someone we knew said they enjoyed it? It was a behavior that Mexicana Pamela Valdés soon realized after she created a Facebook fan page for lovers of books in Spanish, called Beek. When after a few months, she registered over 23,000 fans, she knew she was on to something.