I hope I can get a Google Wave invite.
Google Wave is “a personal communication and collaboration tool” announced by Google at the Google I/O conference on May 27, 2009. It is a web-based service, computing platform, and communications protocol designed to merge e-mail, instant messaging, wikis, and social networking. About a million people were extended invitations starting Sept. 30, 2009, with the initial 100,000 users each allowed to invite from 20 to 30 additional users.
Here’s a YouTube video of the Google I/O conference announcement.