Microsoft has recently released various SQL Server related documentations and here I have listed them here for quick reference.

Microsoft SQL Server Protocol Documentation

The Microsoft SQL Server protocol documentation provides technical specifications for Microsoft proprietary protocols that are implemented and used in Microsoft SQL Server 2008.

Microsoft SQL Server Protocol Documentation

The SQL Server data portability documentation explains various mechanisms by which user-created data in SQL Server can be extracted for use in other software products. These mechanisms include import/export functionality, documented APIs, industry standard formats, or documented data structures/file formats.

SQL Server Standards Support Documentation

The SQL Server standards support documentation provides detailed support information for certain standards that are implemented in Microsoft SQL Server.

Microsoft Product Support Reports

Download the scripted system configuration gathering tools. The Microsoft Product Support Reports utility facilitates the gathering of critical system and logging information used in troubleshooting support issues.

Reference: Pinal Dave (http://blog.SQLAuthority.com)

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