This document summarizes a study examining the relationship between internet use and participation in protests across 40 countries. The study tested two hypotheses: 1) citizens who use the internet as an information resource are more likely to participate in protests, and 2) certain citizen characteristics combined with internet use increase protest likelihood. Multilevel logistic regression analysis found internet use alone increased protest probability by 52%. However, most interactive effects of citizen traits and internet use were insignificant. The effect of internet use on protest participation varied widely between countries.