- Arcade Otaku – forum, wiki and chat about arcade games and cabinets. Great place with loads of nice and helpful people. Also has a marketplace for trading arcade games, parts and anything related.
- Arkadtorget – swedish forum about arcade games and pinball games.
- Shmups forum – forum mainly about shmups but also has an area for hardware related discussions and a trading post.
- World of Arcades – hi-res artwork, images of PCB’s etc for CAVE shooter and some more.
- International Arcade Museum – the world’s largest educational center of the art, inventions, science, and history of the amusement and coin-operated machine industries.
- Arcade Otaku – AO also has a Wiki covering both arcade hardware and games.
- Hard*Candy – Wiki project dedicated to documenting Japanese candy cabs.
- Solvalou – Arcade PCB DIP switch settings plus some tech articles.