With the new wave of products (Exchange 2007, Windows 2008, SQL 2008, OCS 2007, etc) many people are looking to refresh their certifications. The new technical certifications fall into four categories:

• Technology Series (entry level): Microsoft Certified Technology Specialist (MCTS)
• Professional Series: Microsoft Certified IT Professional (MCITP) and Microsoft Certified Professional Developer (MCPD)
• Mast