The semi-new service by Google, Google Wave, is currently in a limited preview. You have to be invited.Read About Wave
Here's how this is going to work. If you've got Wave invitations you're willing to donate, post a comment below, saying something like: "I've got 10 Wave invites; who wants one?" In that case, the first ten people to reply to that comment providing that generous soul with a means to invite you get invitations.
Wave invitations will require an email address.
I got this idea from lifehacker.com
. In fact most of this post is an exact copy of one of theirs.
Lifehacker's thread can be found at: http://lifehacker.com/tag/waveinvitationdonationthread/