VIR= Virginia International Raceway. The best private/club track east of the Mississppi.
http://www.virclub.com/vir/ If you have an opportunity to participate at a VIR event DO IT!
The Mid Atlantic NASA site:
http://www.nasaracing.net/
The only VIR event that is still open is the July one. I'm not going to any of the VIR events (6+ hours to get there) but I'm negotiating with the finance committee to appropriate the funds required for a Summit event.
To autocross check out:
www.scca.org Go to the regional tab and find your local chapter.
www.myautoevents.com You can search by region or type of event.
http://www.nasaproracing.com/ The National Auto Sport Association hosts NASA-X, which is their version of an autocross.
If you need more specific info you can PM me and I'll point you in the right direction!