remember the gmail style of invites and the days you were trying to find an invite? you had to wait for someone who knew someone, etc. maybe those days are over.
how about a web 2.0 invite co-op? that's what my friend scott mcandrew found. he told me about inviteshare.com and in < 1 minute i registered and instantly got an email with an invite to yahoo! mash, one of the sought after invites (although i'm not sure why) right now. interesting approach to broker invites among an anonymous network of friends.