Hardware and software
Psytronik Software - Wondering where all the latest commercial game software is, most of it is here.
Protovision - Lots of new hardware and software here.
Retro Innovations - New hardware for your old Commodore.
TFW8b.com - New hardware and software, lots of fun projects.
commodore4ever - Ebay store for commodore4ever.
GGLabs - Commodore and others retro computer hardware
Carlsen Electronics - New Commodore power supplies by Ray Carlsen
C64OS - A new OS to take advantage of new hadware. A great library of new hardware.
Mega65 - A new 8 bit C64 compatible computer project.
LGR - Lazy Game Reviews - a fun look at retro computing and electronics.
The 8-Bit Guy - Lots of great retro and Commodore hardware and software videos.
commodore4ever - A fairly new channel, owner runs the commodore4ever BBS, builds, tests and repairs hardware.
MsMadLemon - Hardware, software and games, more of an Amiga focus.
Jeri Ellsworth - A huge library of science, technology and engineering how to videos, lots of Commodore related content as well.
Perifractic's Retro Recipes - Lots of repair and restoration of vintage computers, lots of Commodore machines.
RetroManCave - Repair and restoration of vintage computers including lots of Commodore computers.
Jan Beta - Even more great repair and restoration videos.
Commodore Computer Clubs
AMUC - Amiga Users Of Calgary
TPUG - Toronto Pet User Group
PSCUG - Puget Sound Commodore User Group
Commodore Computer Club USA - Vancouver, WA - Portland, OR - PDX Commodore Users Group
FCUG - Fresno Commodore User Group
SACC - Sacramento Amiga Computer Club
Other Great Links
The C64 Mini - Official home of the C64 mini.
C= BBS Outpost - Appears to be a pretty complete list of Commodore BBS systems, both dialup and telnet.
Commodore Free - Commodore free magazine.
Loadstar - Loadstar Library
Sceneworld - Sceneworld disk magazine
Retro Computer Scene - News, articles and huge link pages for several old computers.
DLH's Commodore Archive - Scans of magazines, books, manuals, etc.
Lots more coming soon.