Well, my screen-name is obviouly a slightly shorter version of my dull name-name.  Offline Drew tends to be inadvertently very bad with people, stumbling through his sentences and getting himself into trouble with "If you (do or don't) x, the terrorists win" and "Why do you hate freedom?" jokes (which don't fly with the in-crowd in Washington).  Online Drew comes off slightly smarter than Offline Drew.

Beyond that, I'd say I'm roughly the same, but, as I spend such a huge chunk of my day on a computer, it's difficult to separate the two, especially since the offline version of me generally just wants to have a beer, watch Hardball and Countdown, and fall asleep.

Be nice to America. Or we'll bring democracy to your country.