I was poking around on Dean Wesley Smith's blog, and he pointed over to a Scott William Carter post on the subject of Internet Engagement.
He mentions famous folks like Scalzi and Gaiman, and where he thinks they might be relative to, say, himself.
After perusing the scale, I'd say I vibrate in the 3 to 5 zone, depending on the week. In a bad month, maybe a 2.
Hat tip, Dean Wesley Smith.