Gave a talk on Open Source GIS & Web Mapping PPGIS & Volunteered Geographic Information in Rob Goodspeed's course in the Taubman College of Architecture and Urban Planning, University of Michigan.
Gave a lightning talk at McGill's Soup and Science, bite-sized science for undergrads, informally titled "What do next bus app, crowdmap, uber app and example tweet have in common? A geographic reference"
Gave one of the keynotes at the Computers in Urban Planning and Urban Management Conference, Cambridge, MA, USA. July 7-10, 2015, called How are newer Information and Communications Technologies impacting local governance?