http://blogs.technet.com/jkruse/archive/2009/06/24/download-free-ocs-r2-e-books-but-be-quick.aspxFor the next few days you can download free copies of some MS Press e-books on OCS 2007 R2.  Simply sign up for the Microsoft Press Book Connection Newsletter for notification of offers, register, and download the selection of the month. Programmingen-USCommunityServer 2.1 SP1 (Build: 61025.2)