Yes, I've probably already recommended this book by Malcolm Gladwell to you but hey if not listen up. The author talks about how things become epidemics, from Hush Puppies, to smoking, Seasame Street or Blues Clues. My favorite part of this book is his idea of the Connectors, Mavens, and Salesmen. There are a lot of facts presented in an easy to understand way. I just loved it.
Right now Malcolm Gladwell has his second book BLINK on many bestseller lists. I'm looking forward to reading it.