Again, Microsoft Press is releasing a brand new book for you to download it completely free:

Windows Small Business Server 2008 Administrator’s Companion

But you should know that this book is going to be available for download for a short period of time: April 15 to April 22. So you better hurry up and get yourself a copy!

The SBS platform that was introduced with Windows Server 2003 is oriented to small-medium organizations (between 5 and 75 computers) and gives you all the possibilities and solutions that you may need to use on your organization within a single server: Active Directory, Exchange Server, Internet Information Services (IIS), Sharepoint, SQL, Terminal Services, etc. Avoiding, this way, to consider the implementation of several servers and their hardware and licensing costs.

Also, on the devs side, you can find this book also available:

Microsoft® Visual Basic® 2008 Express Edition: Build a Program Now!

Enjoy!