"Many of us at Mozilla and within the Mozilla community were
excited when Stephen Colbert gave Firefox 3 his 'Colbert Bump' on
the day of Firefox 3's launch (a big thanks to Jonathan Zittrain).
You can watch the video here.
"Download Day was a wild success, and we were happy to share
some thanks and credit with Stephen. However, a few questions
naturally arose, e.g., what was the direct impact of the Colbert
Bump? and could the effect be precisely measured...?"