This past week I went to Mexico City to give a keynote address at Ciudadano 3.0 (Citizen 3.0), a summit on online political marketing organized by the Mexican Internet Association.  I went a little off topic, talking about the growing trend in mass movements around the world (see below).  The summit was in anticipation of Mexico’s presidential elections in 2012 so, despite my more global topic, most of the questions were about the Obama campaign’s use of digital and how to apply it to Mexico.