Lately, Gmail has been generous with the invites, and I've got more than I need (for "real life" friends, etc). If anyone's interested in getting a gmail account invite, send me an e-mail to:
geek4ever(AT)gmail(DOT)com
I'll do what I can to send out as many as I can, first come first served. Not all invites may originate from that account, but let me know there if you want one.
Mark