Classic Consoles
Offering retro computer games and hardware including: Nintendo, Sega, Atari and Commodore. UK site ships internationally. http://www.ClassicConsoles.co.uk/
Mariotown.com
Sells Nintendo, Sega, and Atari games pre-owned video games. Michigan, USA.
Atari 2600.com
Online supplier of classic video games, systems, and accessories including Atari, Colecovision, Intellivision, Odyssey, Vectrex, and others.
Retro Action
Carries retro games as well as newer systems and software.
K's Game X Change
Trades and sells games for a wide variety of systems. Also has a history of video games section.
