MSDN Screencast Library

The MSDN team over in the UK has put together a huge collection (279 at the time of this post) of short screencasts for .NET developers.  Each video is only about 10-15 minutes long, but packs a lot of useful information. 

Here is the full List of Screencasts.

From the home page:

Don't have the time to read a 10-page how-to article or watch a full length webcast? Try an MSDN screencast, a webcast that takes you step-by-step to discovering new functionality or exploring a hot developer topic, all in 10-15 minutes. View them online now or download for later reference.