FreeRepublic was really
partying hard over the pick of Tony Snow for White House press secretary, and not just because he's a Fox News commentator. Snow was a bona fide Freeper-- he posted frequently to political debates, prayer sessions, and of course live threads about his own show on Fox.
Unfortunately, someone at the White House saw fit to get Snow's account deleted as soon as the story broke. I've extracted a small sample of his posts from the past year from the Google cache, and an old news story by FAIR quotes some of his posts from 2001. That, and the fond memories of the other Freepers, is all the evidence you'll have that Snow spent a sizable amount of time on an Internet forum.