CAD & related
- AutoCAD DXF Format
LOGIC
- Laws of Boolean Algebra
- Satisfiability of General Boolean Expressions
- Minimization of Boolean functions
- The Quine-McCluskey method
C# & Microsoft .NET
- C# Corner
- ECMA spec
- Performance notes (from Microsoft)
- Lutz Roeder's site (Reflector, and more)
- The Garbage Collection page
- Got Dot Net (Microsoft's semi-official .NET programming site)
Compiler and parser stuff
- Coco/R for C#
- CsLex
- Compilers and compiler generators intro
- Parsing techniques, a practical guide
- The official Delphi 5 grammar
Windows
- SysInternals - cool low-level tools