Allow me the privilege of presenting to you: The Google Lively
Its a new chatting platform that allows you to create 3D ambiance and let you and your friend's avatars to communicate with each other.
They can show emotions(animated emotions) as you chat. Other features like File sharing has never been this exciting. Its not like what you have seen or done before. Have you ever seen your avatar moving inside the room you created?
I am sure it going to be loved by one and all. Its like playing a video game while chatting - its more interactive and a gives you a richer feeling.
For more information see this.