TechNet Chopsticks is a webcast platform (based on Silverlight) from the MSDN and TechNet teams in Belgium. It has all kinds of technical stuff, provided by Microsoft employees, MVPs, User Groups and content from other events like TechDays.

I selected a couple of interesting videos related with Microsoft Exchange:

• Exchange Server 2007: Move Your Files: The default installation of Exchange Server 2007 puts all files in one location. In this session, Ilse Van Criekinge explains how to move Exchange 2007 database files, log files, message queues, and protocol log files to a new location. This will increase performance and allows for better failover scenarios.
• Integrating Exchange Server 2007 Unified Messaging and Office Communications Server 2007:  This module explains the interaction of OCS 2007 and Exchange 2007 Unified Messaging. It details the environment, dial-plan integration, and steps required to add OCS 2007 to Exchange UM infrastructure. Learn how to: install Exchange 2007 UM, configure Exchange UM, integrate Exchange 2007 and OCS 2007, test UM using OC and access Voicemail Directly from OC.
• TechEd IT Forum 2007 - Speaker Idol Winner: Our very own Ilse Van Criekinge, Pro-Exchange, won the speaker idol contest at TechEd IT Forum 2007. Against very fierce competition and before a jury of some high-profile judges, Ilse gave a super talk on Exchange Autodiscover