Google Wave is all the rage. Not sure what it’s about? Here are the 2 things you can review to become an expert (without actually getting an account):
Google Wave Intro by Epipheo
A quick-and-dirty explanation of what some of Google Wave can be. Very popular video from the last couple of days on the social networks.
Google Wave Intro from Google – May 2009
A very long introduction, but it’s very complete and fully geeky for those that are interested.