Instant messaging

We all use IM (instant messaging) in various forms MSN, Skype, Facebook, Yahoo and many others. But their software has to be installed on your computer and on your friends too (in most cases). At IMO.IM you dont have to install anything, it works on every operating system, just need a browser. The best thing is that You can use all the listed IMs from one place simultaneously and chat with many people in same time on differnt chat platforms