Yes, you should make it to the meetings.

(Although I have little room to talk, as I've been MIA for most of the last two years because of evening classes.)
As far as I'm aware, there's not a compiled listing of Hokies in small business. It's possible to glean that information from the Alumni Directory, since they have a much larger reach than the site does. I can only speak for about half a dozen or so of the "regulars" who make it out to the monthly meetings and events. I believe, however, that by and large, most of the alumni are mid-size corporate and up.
If you're wanting to talk sites, drop me an email and we can talk a bit more. It's not my primary profession, but maybe there's something I can do for you, or at least point you in the right direction.
~rj