- Microsoft
- BloodshedSoftware (Dev-C, a free IDE and a free compiler)
- C Programming
- C-Span
- DataReel (libraries)
- How C Programming Works (How Stuff Works)
- w100w.com: Scripts ASP, C/C++, Perl, PHP, Java, JavaScript
- Allegro is a multi-platform game library for C/C++ developers.
- asio is a cross-platform C++ library for network programming that provides developers with a consistent asynchronous I/O model using a modern C++ approach.
- C++ Archive
- C++ con clase
- C++ pour les (gros) nuls
- CPP France - CPP Codes Sources
- DevX
- Dr. Dobb's
- FOX is a C++-based toolkit for GUI development
- Fred Pro
- GOBLIN: A Graph Object Library for Network Programming Problems
- Microsoft Visual C++ Developer Center
- Mindview: Thinking in C++
- PJ Naughter: MFC and C++
- O'Reilly
- Visual C++ DevCon
- Andy McMullan: .NET FAQ, C# FAQ
- C# Corner
- C# Er: IMage
- C# Help
- CSharp-Source: open software in C#
- EasyCSharp
- Microsoft: Visual C#
- SharpDevelop: an open source C#/VB IDE
