Covert BitOps
Lasse Öörni (aka Cadaver) is probably best known for the superb Metal Warrior series of action platform games, his other projects include BOFH - Servers Under Siege, a brutal top-down action game and the superb GoatTracker which is a PC-based music tracker for writing C64 tunes.

Cosine Systems
The Magic Roundabout and the rest of the Cosine crew are known worldwide for their dedication to creating games and releasing them on various platforms.

Funkscientist Productions
Home to a couple of slightly less than sane developers and a cute-looking frog called "Fletch" who is getting his own platform game with a developers diary at no extra cost!

Protovision
Makers of Enforcer 2 and SuperCPU specific Metal Dust, the distributors of the platformer Ice Guys amongst others and most recently Hockey Mania.

Style

C64 News

Commodore 64 Scene Database

DLH's Commodore Archive

NTSCene

ACME
Cross assembler that can produce code for the 6502, 65c02 and 65816 processors

All About Your 64/1541/1581

CBMPlugs
Plug-ins for use with The GIMP bitmap editor

Codebase64
A wiki project collecting source code for the C64 computer

Exomizer 2
A program that compresses and generates executable files that decompress themselves in memory when run

The Fridge
An excellent resource of C64 specific source code

GangEd
Windows based "one stop" C64 data and graphics editor

ProjectOne
Windows based C64 bitmap editor and graphics converter

Relaunch64
Text editor for assembly coding on Windows which works together with cross assemblers like ACME and ca65

Timanthes
Paint.NET based C64 bitmap editor and graphics converter

The Turbo Assembler Homepage

WDStudio
Windows based C64 bitmap editor

CBMXfer
Frontend for use with OpenCBM, CBMLink, and C1541

CCS64
Another fine C64 emulator

CGTerm
Telnet client that lets you connect to C64 telnet BBS with the correct colors and font

D64Lister
A nice tool to create ASCII lists of your D64 files

DirMaster
The best Windows-based GUI tool for CBM disk image manipulation

OpenCBM
Windows NT/2K/XP and Linux/i386 kernel driver to control serial CBM devices connected to the parallel port via XM1541 or XA1541 cable

Versatile Commodore Emulator (VICE)
Well rounded emulators for C64, C128, Plus/4, and other Commodore machines

X1541 Series Interface Cables
The cables used to transfer disk images back and forth between C64 and PC