This meetup group and their events are tailor made by our good friends at Edtric for all you Hi Tech Makers, Hackers, and Engineers (you know who you are)
Join their meetup group http://www.meetup.com/edtric/
Come join us every Tuesday for open discussions about all things engineering, hacker, and maker related. The main purpose of these meetings is to bring together the Orange County innovator community through relevant topic discussions and presentations. Whether you have a project you would like to show off, need to bounce ideas off of other techies, or if you are just looking for a way to get started then our weekly Tech Talk is a great place to start.
Overview of The Linux Operating System (Ubuntu Distribution)