I have posted a new screencast - http://channel9.msdn.com/Showpost.aspx?postid=368699
In this screen cast I will talk about Windows Live Messenger control, and show you how to host it on your website, I will also demonstrate the usage of the new presence API.
To find more information
•          http://dev.live.com
•          http://www.dotnettikihut.com/
•          http://blogs.msdn.com/angus_logan/
•          http://blogs.msdn.com/usisvde