S4, E8: Jack's (Alec Baldwin) interest in a new social networking site unexpectedly reconnects him with a high school crush (guest star Julianne Moore). Kenneth (Jack McBrayer) tries to organize a Secret Santa Fun Swap, but not without resistance from some of the staff members. Meanwhile, Liz (Tina Fey) battles the task of buying a gift that's good enough for Jack, and Jenna (Jane Krakowski) is horrified at the prospect of sharing her annual Christmas solo. Tracy Morgan, Scott Adsit, Judah Friedlander and Keith Powell also star.