Meebo, the one stop-shop for IMs
What’s good about Meebo is really the integration of all the popular chat and instant messaging platforms like Yahoo Messenger, Facebook and MySpace chat, AIM, MSN, GTalk, and the like. This is ideal for people who need to IM, whether for business or personal purposes, to have access to their preferred IM platform anywhere.
What’s even better is that users do not need to download any software or register (except for the IM they’re using) to be able to use Meebo. What’s more, it’s completely free of charge to use, so anyone is able to enjoy the benefits.
Meebo users also have their own online community where they communicate and keep in touch with each other. You will have to register for this though, although the feature itself is free.