Hey this is really nice topic to share
I think Google Wave a real-time communication platform and it combines everything from email, social networking (for example FaceBook), instant messaging . In other words: you will get access to all of this and much more through a one in-browser client. Want to share files with your friends and colleagues at work? Yes, you guessed right – Google Wave is a tool that can help you with this. Some of the features that are included are: drag and drop file sharing, wiki functionality, real-time, embeddability on your blog or website, playback and natural language which means that the wave corrects your language.