D

• D Programming Language - official site
  
  
• Digital Mars' D Programming Language - the proprietary version of the language with compiler for Win32 operating systems.
  
  
• GNU D Compiler (GDC) - D Programming Language for GCC.  Supported on Linux and MAC OS.
  
  
• D Programming - a wiki book
  
  
• dsource.org - Open Source Community for the D programming language
  
  
• "The D Programming Language" - article by Ameer Armaly, Linux Journal,  #155, March 2007.