The Microsoft Exchange Team has published latest updates on technical documentation:
The Exchange Server documentation team is pleased to announce the following Exchange Server 2007 content.
You can see these articles and other Exchange Server documentation content in the Microsoft Exchange Server TechCenter.
Continue reading at http://msexchangeteam.com/archive/2007/12/05/447692.aspx.
Paul Flaherty also keeps a monthly list of the latest downloads, webcasts, documentation and KB articles. You can read the full post at http://blog.flaphead.dns2go.com/archive/2007/12/12/a-month-in-exchange-december-2007.aspx