The TechNet LCS technical library is now live on the Microsoft site at the link below.
A usefull and well laid out source for all your documentation needs around LCS. the only thing thats seems to be missing is an RSS feed :(.
http://www.microsoft.com/technet/prodtechnol/office/livecomm/library/default.mspx
Russ Kirk
russ.kirk@GreyConvergence.no.spam.com