Google Wave is a forthcoming service that appears to be quite revolutionary in communication methodology.  It is a combination of email, message boards, and instant messaging mashed together in an intuitive fashion that heightens the efficiency and, ultimately, the productivity of communication.  Watching the video and checking out the post found here at bizzia.com gives you introduction to wave.  It may become a replacement for email, especially internally and beyond as its popularity grows and competitors adopt similar concepts.  I love seeing advancement in technology, more so when it will affect entrepreneurs and you can bet new ventures will pop up utilizing such new services and offering extensions thereof, just as you’ve seen with simple services like twitter.  Cool stuff! Check the vid out below. It’s kind of long but the first 20 min. or so give you the simple idea.