Commodore
- 42
- The Def Guide to Zzap!64
- UK Commodore 64 and Amiga games magazine. Full scans of every Zzap!64 issue from 1985-1994. Also DVDs for sale containing every issue of Commodore User and Commodore Format.
- 45
- All About Your... Help Files
- Help system for Commodore programmers by Ninja. Available in ASCII and HTML for the C64, 1541, and 1581.
- 46
- An Introduction to Programming C-64 Demos
- Linus Åkerlund's tutorial about writing demos with assembly language.
- 47
- C64 BASIC/Kernal ROM Disassemblies
- Lists the Commodore 64 assembly source code for BASIC (A000-BFFF) and Kernal (E000-FFFF) operating system.
- 52
- Protovision
- One of the last commercial software and hardware developers on C-64 involved in development and publishing of new games, operating systems, applications, hardware, and paper publications.
- 54
- oldsoftware.com
- New and used software, hardware, accessories and supplies for Commodore 64 and 128 computers. Good Commodore history page too.
- 55
- 1581-Copy
- CBM 1581 floppy disk copy utility for DOS. Imports and exports 1581 disks to a PC based 3.5" floppy drive and disk controller.
- 56
- LNG: LUnix, the Next Generation
- An experimental operating system for the Commodore 64/128. The open source project is hosted at SourceForge and has been ongoing since 1993.
- 57
- The Turbo Assembler (for C64) Homepage
- Online home for native C64 Turbo Assembler, Turbo Macro Pro, modifications, and related tools.