Tech History
- Historical Tech Tree or Calculating Empires - Historical Discovery / Tech Timelines
- ETHW: Engineering and Technology History Wiki
- Museum of Obsolete Media: Physical Media Format Wiki / History
- BetaWiki: Operating System / Software History / Discord
- Old Computer Museum: Computer History
- The Retro Web: Computer Hardware History
- The HP 9845 Project: HP 9845 Computer History
- Folklore or TheAppleWiki: Apple Computer History
- Crypto Museum: Cryptographic Machine History
- VGA Museum: Graphic Cards History
- Virus Encyclopedia: Computer Virus History
- MobilePhoneMuseum: Mobile Phone History / Info
- WalkmanLand: Walkman History / Database
- InfoMesh: Web History / Info
- VersionMuseum: Website History / Info
- info.cern: First Website on the Internet
- KilledByGoogle, Microsoft Graveyard or SuedByNintendo: Dead Projects Archives
- NuclearWeaponArchive: Nuclear Weapons History