Silverlight introduction
At Mix07, Microsoft announced Silverlight.
Microsoft Silverlight is a cross-browser, cross-platform plug-in for delivering the next generation of .NET based media experiences and rich interactive applications for the Web.
You can read more here (SilverLight site), its amazing!
Great post about Silverlight UI Controls, by Ashish Shetty, you can find here.
Slides and demos you can download from Nikhil Kothari's Weblog.
Enjoy!