Retailers

Commodore Bits - Sells X1541 cables and collections of Commodore and Amiga games.
http://www.nishtek.com/cbits/shop.html

C64 Reloaded - Sells disk drives, cables (XM, serial, monitor), expansion cards and programmable circuit boards for hobbyists.
http://www.c64reloaded.com/

C64 non-transparent keyboard stickers - Commodore 64 keyboard symbols for your desktop or laptop keyboard.
http://www.4keyboard.com/index.php?main_page=product_info&products_id=141&zenid=4d0da68548b40d2d9749d14680f1dfc5

64 & More Store - Small San Diego County firm providing Commodore and Amiga hardware and software.
http://www.64andmore.com/

oldsoftware.com - New and used software, hardware, accessories and supplies for Commodore 64 and 128 computers. Good Commodore history page too.
http://www.oldsoftware.com/index.html

Computer Workshops - Some recently released games and productivity software for the Commodore 64/128 and MS-DOS. Previews of upcoming titles.
http://www.armory.com/~spectre/cwi.html

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.
http://protovision-online.de/

J.P. PBM (Products by Mail) - Ontario based. Carries Commodore hardware, software and books.
http://www.jammingsignal.com/jppbm/

DigitalDinos - Retrocomputing retailer in Ohio selling Commodore hardware, software and books.
http://www.digitaldinos.com/

8 Bit Designs - Comptuers, power supplies, cables and other Commodore hardware. Under new ownership.
http://www.8bitdesigns.ath.cx/

Vintage Computer Cables - Custom monitor, serial and X*1541 cables to connect vintage Commodore computers to modern components. Connection guides available in PDF format.
http://www.vintagecomputercables.com/

Unofficial CMD Homepage - Find information and software around CMD products.
http://www.cmdweb.de/