Here is a novel approach to communication, though it is only talk now (supposed to be online in a few months.) It will allow “conversation” in the form of rich text wave where participants can include movies, blogs, text, images, twitters, etc.
Here is a look at what one of these waves will look like:
The service seems to combine Gmail and Google Docs into an interesting free-form workspace that could be used to write documents collaboratively, plan events, play games or discuss a recent news.
via Google Wave.