May 12, 2008Where 2.0 2008 at Marriott San Francisco Airport Burlingame
July 21, 2008OSCON at Oregon Convention Center
September 8, 2008TechCrunch50 at The Galleria at the San Francisco Design Center
November 2, 2008Defrag at Hyatt Regency Denver At Colorado Convention Center
May 12, 2010php Day at Corropoli, Italy
July 19, 2010OSCON at Oregon Convention Center
September 16, 2010PennApps at University of Pennsylvania