When it launched last fall, YearbookYourself.com became an instant hit and a pop culture phenomenon featured on countless Web sites and blogs, as well as on the CBS Early Show. More than 15 million visitors uploaded photos to the site to see themselves with classic hairdos and in vintage outfits spanning five decades. Once "yearbooked," people sent their pictures to friends and posted them to blogs and social networking sites, including Facebook and MySpace. The fun was wildly infectious, inspiring Taubman Centers to launch YearbookYourself.com again this summer.