"This show was my college." Blake Lively is taking a walk down memory lane in celebration of Gossip Girl. The hit show turned 18 this year after premiering back in 2007. Lively's photo dump included ...

Actresses Michelle Trachtenberg and Sarah Michelle Gellar are pictured at the 25th Annual William S. Paley Television Festival on March 20, 2008, in Los Angeles, California. (Photo by Jon ...