There are a few relatively new Microsoft blogs out there to watch that I wanted to point you to -
Jens Trier Rasmussen - Jens is an old seasoned Microsoft consultant (Also from Denmark) that has worked a lot with Exchange and OCS and lately have been supporting the Voice Partners during the beta's. He already has some good posts on OCS in his blog so go check it out here.
Flight Deck / Chad Lacy - Chad is a Microsoft engineer from Charlotte, North Carolina (Where some of my other good contacts are placed). His description says "Discussions about Unified Communication, LCS/OCS, VoIP, and more" and he is the first person, besides me, that I have seen holding both MCSE certification and a MBA degree ;-) Find his blog here.
Karsten Palmvig - Karsten is another Danish Microsoft consultant who used to be primarily a Exchange expert (Like Jens and I actually). His description says "Notes from the field on Exchange, OCS, UC and DPM..." find his blog here.