Fresh out of press (ok, it is out since beginning of April but I just saw it now): Brian Komar, the well-known author of several PKI books on Windows Server just released a new book called Windows Server 2008 PKI and Certificate Security. If you are planning a Windows Server 2008 PKI, this is a must-read (at least knowing Brian's books J).
Here is the abstract:
Get in-depth guidance for designing and implementing certificate-based security solutions—straight from PKI expert Brian Komar. No need to buy or outsource costly PKI services when you can use the robust PKI and certificate-based security services already built into Windows Server 2008! This in-depth reference teaches you how to design and implement even the most demanding certificate-based security solutions for wireless networking, smart card authentication, VPNs, secure email, Web SSL, EFS, and code-signing applications using Windows Server PKI and certificate services. A principal PKI consultant to Microsoft, Brian shows you how to incorporate best practices, avoid common design and implementation mistakes, help minimize risk, and optimize security administration.