The San Gabriel Valley Linux User's Group meets monthly at Caltech. Each month a speaker gives a presentation on Linux or technology related topics.
The San Gabriel Valley HAK meets several times a month to work on hardware related projects.
A meetup group that serves as an umbrella group encompassing the San Gabriel Valley Linux User's Group (SGVLUG), San Gabriel Valley AI (SGV-AI), San Gabriel Valley HAK (SGVHAK), Security Syndicate, and Pasadena Ubuntu Hour groups. We are a community of people interested in topics such as, but not limited to: Linux, open source software, hardware hacking, microcontrollers and Ubuntu.