H.D #226329

May 6, 2008

London Python Meetup at ThoughtWorks UK Office

August 19, 2008

Hadoop User Group UK at Skills Matter Limited

September 15, 2008

Google Developer Day 2008 at Wembley Stadium

January 22, 2009

Open Source Geospatial & The OSGeo Foundation at BCS

July 7, 2009

YDN Tuesday: Placemaker at Skills Matter