James Senior just told me about his pet project, the Web Application Toolkit for Making your Website Social.

This Web Application Toolkit shows how, using a few lines of code with the Windows Live Messenger Web Toolkit, it is possible to add social capabilities to a Web site. The Windows Live Messenger Web Toolkit is a JavaScript based set of controls and libraries that allow a developer to quickly and easily add instant messaging to a Web site and harness the power of the Windows Live Messenger network that is used by 330 million users around the world. The Web Application Toolkit will also show how to bring information about users from Windows Live such as their presence, profile information and profile picture.

Check it out