For the technically inclined, you can get the following Free Exam Study Guides,
- Microsoft 70-631 TS: Windows SharePoint Services 3.0 Config
- Microsoft 70-640 TS: Windows Server 2008 AD, Config
- Microsoft 70-290 Managing and Maintaining a Server 2003 Environment
- CompTIA N10-003 CompTIA Network+
- Cisco 640-802 Cisco Certified Network Associate (CCNA)