Who are the biggest "twits" in the presidential race? Well, if you consider those utilizing Twitter, the popular bulletin board site, then the winners are soon-to-be-candidate Fred Thompson on the GOP side and Democrats John Edwards and Sens. Barack Obama, Chris Dodd, and Joe Biden. Among them, Thompson seems to be a big user, Twittering twice a week. And, says his Internet czar Pete Snyder, "he's not even in the race." Once in, "I think a lot of that will change," he adds, meaning more entries. As in life, Thompson is folksy when he Twitters. In England in June, he offered: "London is banning smoking in public July 1. I just had a nice cigar with my wonderful host as a tear rolls down my cheek. Cheers, Fred."