Amazon started in 1995 selling books from Jeff Bezos' garage. By 2006 it had grown significantly, selling a variety of products from warehouses around the globe. Amazon has built powerful technology infrastructure to support its e-commerce business and personalize recommendations to customers based on purchase history. It sells almost any product imaginable and uses an affiliate program to expand its customer base. The "Long Tail" concept of selling less popular products is part of Amazon's success.