This is a neat little site I found in which you can instant message with other people without having to install anything. All you need is a browser and type in a name and you should be good to go! Just copy and paste the link to others to share in the conversation. This one is really good if you are not allowed to install applications on your computer at work (LOL). The neat thing about this site is that you can sign in using your Twitter account if you want a different option.