On demand video of the August 2011 Security Bulletin Release Webcast can be found at http://technet.microsoft.com/en-us/edge/august-2011-security-bulletin-release-webcast

Read my favorites blogs:

Designing a backup less Exchange 2010 Architecture

Step by step guide for upgrading Active Directory from Microsoft Windows 2003 to Microsoft Windows Server 2008

Microsoft Exchange 2010 CAS Array – Steps and Recommendations

Appear Offline in Microsoft Office Communicator Server 2007

Microsoft Exchange 2010 Test cases

Microsoft Exchange Server 2010 Disaster Recovery