Microsoft just released an updated help file for Exchange 2010 SP1. This one download contains the complete technet content for Exchange 2010 in a single, searchable file. A must have resource. Download Here
The Lync Server 2010 Best Practices Analyzer (BPA) has just released and can be downloaded here. The Lync BPA is only designed to scan Lync components and not OCS components. You will need to use the OCS BPA if you need to scan OCS infrastructure.