HISTORY LESSON: THE GROUNDLINGS
Julia Sweeney was an accountant. Cheri Oteri was a member of A&M's publishing staff. That is, before they found the Groundlings, a renowned Los Angeles improv troupe that has churned out such comedy luminaries as Phil Hartman, Laraine Newman, Lisa Kudrow and Mindy Sterling (Frau Farbisseneh, anyone?)
Well, the Groundlings have turned 30, and Arriviste Press has a great article on the history of the troupe.
Laughing on Solid Ground
What? You've never taken improv? You should. I'm an improv fundamentalist: I think everyone should study improv, at least for a few hours. It is the light and the resurrection, and the rock of ages, and my own personal Zion, and--oh, never mind.
But seriously, take improv.