In his post, he mentions the following events / event organizers, and you should visit his post for a bit more on each of them. LA CTO Forum Dealmaker Media Digital Family Reunion Startups Uncensored Social Media Club, LA Twiistup Mindshare LA LA Hadoop Meetup Dorkbot Geek Dinners LA Cloud Computing LA Web Application Developers LA PHP Developers In addition to these, I'd recommend looking at: Technology Council of Southern California – Surprised John didn't mention this one.