Mixbook is a rapidly growing provider of web-based software that enables users to create photo books, cards, and calendars. The company’s easy to use interface allows customers to quickly upload photos from leading photo hosting applications, including Facebook, Flickr, Yahoo, Photobucket, Picasa, and SmugMug, as well as from the user’s desktop, and to compile these images into a wide variety of fully-customized, personalized photo products. Mixbook generates revenue from the sale of printed copies of users’ photo creations.