This may have been around a little while but I'm just now using it. Well, I've been using it for several months now.  So, I'm just now talking about it.

Many people have installed Yahoo! Messenger, MSN Messenger, ICQ, AIM, and others in order to have all of their contacts available.  This caused a lot of programs to be open on your computer. And a lot of the information was saved on the local computer.  In order to cut this down some, I started using a program called Trillian.  This was great since it brought all of these into one program.  I had all of my contacts from all the messengers in one list.

Well, now, I don't even have to have any programs installed. With the advance of Web 2.0, I can now go to Meebo.com and log in and all of my contacts are right there. Everything is saved online.  This means that I can log into Meebo from any computer and it will all be there.

And if you're using Firefox (which I suggest), then you can get the Meebo Firefox Extension.

Simply, you should check this out at Meebo.com