Hi,
I love chatting on the sites like Yahoo and MSN and would really like to know how their kind of chats work.

Can you please tell me where on the net can i find how they work?

Thanks.

Here is a basic explanation of how IRC (Internet Relay Chat) works. Yahoo and MSN work similarly.

What level of information are you looking for? Is this good or do you want more detail? (I don't think I can give much more, but someone else might be able to if you want it)