July 24, 2007

Lunch 2.0 at Microsoft San Francisco

October 9, 2007

Happy Hour 2.0 (H2.0) at ZendCon at Hyatt Regency San Francisco Airport

April 22, 2008

Web 2.0 Expo at Moscone West

June 5, 2008

Don Knuth: Computer Musings: Fun With Binary Decision Diagrams (BDDs) at Stanford University Skilling Auditorium

August 14, 2008

Lunch 2.0 @ MySpace San Francisco at MySpace San Francisco

October 10, 2008

Lunch 2.0 @ Yahoo! Sunnyvale at Yahoo!

June 4, 2009

SF PHP Meetup at CBSi