- 99er.net
Texas Instruments TI-99/4A resource site with software downloads, documentation, and community projects.
- Arcade Shopper
TI-99/4A parts, peripherals, ICs, repair components
- Planet 99
TI-99/4A software archive and emulation resources for Texas Instruments vintage computer enthusiasts.
- RETRO Innovations
Maker and store for contemporary peripherals and expansion hardware for classic computers, including storage devices and memory expansions.
- TI-99/4A Tech Pages
Extensive technical documentation for the TI-99/4A computer including hardware architecture, programming, and peripherals.
- VCF SoCal
Annual Southern California vintage-computing festival at the OC Fair & Event Center, with exhibits, talks, and hands-on activities. The next festival is scheduled for February 20–21, 2027.
- VCF Southeast
Vintage Computer Federation festival in the southeastern United States with exhibits, vendors, talks, and community activities.
