Below some of the Microsoft Certifications available.

Microsoft Certified IT Professional (MCITP)

• IT Professional: Database Developer
• IT Professional: Database Administrator
• IT Professional: Business Intelligence Developer
• IT Professional: Enterprise Messaging Administrator
• IT Professional: Consumer Support Technician
• IT Professional: Enterprise Support Technician

Microsoft Certified Technology Specialist (MCTS)

• Technology Specialist: SQL Server 2005
• Technology Specialist: SQL Server 2005 Business Intelligence
• Technology Specialist: BizTalk Server 2006
• Technology Specialist: Microsoft Office Live Communications Server 2005
• Technology Specialist: Exchange Server 2007: Configuration 
• Technology Specialist: Office SharePoint Server 2007: Configuration
• Technology Specialist: Windows SharePoint Services 3.0: Configuration
• Technology Specialist: Office Communications Server 2007: Configuration
• Technology Specialist: Office SharePoint Project Server 2007: Configuration
• Technology Specialist: Deploying a Business Desktop with the BDD
• Technology Specialist: Microsoft Windows Vista Client, Configuring

Microsoft Certified Systems Engineer (MCSE) on Windows Server 2003

• Messaging Specialization
• Security Specialization

Microsoft Certified Professional Developer (MCPD)

• Professional Developer: Web Developer
• Professional Developer: Windows Developer
• Professional Developer: Enterprise Applications Developer

Microsoft Certified Systems Administrator (MCSA) on Windows Server 2003

• Messaging Specialization
• Security Specialization

Microsoft Certified Desktop Support Technician (MCDST)
Microsoft Certified Database Administrator (MCDBA)
Microsoft Certified Applications Developer (MCAD)
Microsoft Certified Solution Developer (MCSD)