Different sites/ways available for chatting??

As far as I know, you can use rediff, yahoo, and skype to chat with anyone. If you know the email address of the other person, then you can use the Gtalk or Live/MSN messenger. I know some virtual chatting softwares where we can chat with virtual avatars. One is IMVU i.e. www.imvu.com you can try this site. It was a good experience but the problem is we need some money and some documents in order to use all the features. But it was so good to chat.

Meebo.com?