BCB DX Lib  
   DirectX RAD development using Borland C++ Builder.
   http://bcbdirectx.sourceforge.net/

DirectX 5.0 Port for Mingw32 and Cygwin  
   This makes it possible to use DirectDraw with the Mingw32 or Cygwin free compiler environments.
   http://www.ozemail.com.au/~peterhawkins/directx.html

DirectX eXperience  
   DirectX site with articles, tips & tricks, and a list of related books.
   http://www.geocities.com/SiliconValley/Way/3390/

The Code Project  
   A programming site with a large section on DirectX. Includes articles, and links.
   http://www.codeproject.com/

GameDev.net  
   Gives news and contains articles about DirectX.
   http://www.gamedev.net/

Chilkat DirectX C++ Game Development Library  
   Provides a framework and C++ classes for developing DirectX applications. [Open source]
   http://www.chilkatsoft.com/ChilkatDx/

Microsoft DirectX Developer Center  
   Microsoft's official home site about DirectX.
   http://msdn.microsoft.com/directx/

Inside DirectX  
   Microsoft's authoritive book written by partners on the DirectX team contains many essential details for DirectDraw programming.
   http://www.amazon.com/exec/obidos/ASIN/1572316969

DirectX 6.0 and Windows Media Technologies Bring Multimedia to Windows CE  
   Article about DirectX on Windows CE-based devices such as the Sega Dreamcast console.
   http://www.microsoft.com/msj/0799/directx/directx.aspx

Games Programming with DirectX 8 and C++  
   Help programmers who are new to DirectX get acquainted with the libraries, in particular DirectDraw and DirectInput.
   http://www.cpp-home.com/tutorial.php?23_1

TripleBuffer Software  
   Contains DirectX tutorials, source code, and projects for both C++ and C#.
   http://triplebuffer.devmaster.net/

Mr.Snow DirectX8 Column Gold  
   DirectX programming tutorial collection. [Commercial and free versions]
   http://www.xdev.ru/dxgp/rgd_articles_e.asp?s=columns&art=mrsdx8_0000