TED Talk, TEDx Manhattan: Food R&D-I-Y, (later promoted to a full TED talk online) Feb 2011. Over 3 million views across platforms. 

Seeds and Chips Global Food Conference, Milan, Italy. When Doctors Tell Farmers What to Grow, March 2015.

The Conference/Media Evolution, Malmo, Sweden: Who's The Boss When the Crowd Pays the Bills? Oct 2012.

Re:publica Conference on the Future of Society, Berlin, Germany: Broke, Broken, and Forked for the Planet,, May 2012.

The Salon Speaker Series, Johnson & Johnson’s Internal Design Forum, The Prepared Mind 

DUPLO01 arte & tecnologías interactivas, Santiago, Chile, Art/Science, Sept 2009.

Adolfo Couve Auditorium of the Faculty of Arts, DAV, Universidad de Chile, Santiago Chile Nov 2008.

SXSW Interactive Festival:  Better Food Through Open Data 2014

NYU ITP Startups and Entrepreneurship Panel: Interactive Entrepreneurship, Oct 2012.

SXSW Interactive Festival: Participatory Communities Workshop, 2011

Columbia University Earth Day Event “Illuminating the Science: Arts & Climate Change” The Earth Institute, Columbia University, NYC, April 2010.

SXSW Interactive Festival: Funding Your Projects from the Crowd, 2010

Conflux Festival, New Museum, NYC, Oct 2009

And many hackathons and unconferences worldwide.