The current TechNet webcast series
2007 Microsoft Office System: Plan and Deploy with Confidence
Active Directory: Learn the Basics and Master Advanced Concepts
Agility Now: Take Control of Your IT Infrastructure
Ask the Security Experts: Understand the Latest in Digital Security
Business Intelligence with SQL Server 2005: Transform Data into Decisions
Exchange Server in Depth: Master Concepts and Optimize Your Server Environment
Group Policy: Explore Fundamentals and Advanced Concepts
Identity and Access Management: Deploy, Administer, Secure, Operate
Managing a Microsoft Infrastructure: Improve Reliability and Performance
Master Administrative Scripting with Don Jones: Script Better, Faster, and More
Microsoft Forefront: Integrate and Simplify with Greater Protection and Control
Microsoft Windows XP Service Pack 2: Fortify Your Security Measures
Plan, Deploy, and Manage Microsoft Enterprise Search Solutions
Unified Communications: Control Your Infrastructure
Scripting with the Scripting Guys
SharePoint Server: Connect People, Processes, and Information
To Active Directory and Beyond: Learn Windows Migration Strategies
Windows Server 2008: Maximize Control, Flexibility, and Protection
Windows Vista: Improve Your Desktop Security and Deployment Strategy