MSDN TV - Great Place for insights and to meet the people behind the products

MSDN TV is a short weekly video featuring useful technology tips and insights from the behind-the-scenes folks at Microsoft. Tune in to stay in-the-know with MSDN TV.

MSDN TV archive is worth checking... as you can find there lots of nice 10-30 min intros to MS architecture and technologies.

For Example:

Enterprise Architecture: the Next Three Years
Profiling Managed Code with the CLR Profiler
Visual Studio 2005: Whitehorse
First Look at ADO.NET 2.0
Highlights of the WinFS Data Access API
Developing Applications Using SQL Server 2000 Reporting Services
Introduction to Visual Studio 2005 Team System

And the rest of MSDN TV Episode Archive

Check it out... and even register to thier rss feed

Ohad.