In 2006, thousands of American students used their MySpace profiles to organize national marches for immigration reform,with the strongest node anchored in California (Costanza-Chock, 2008). Outside the U.S., manycommentators credit the 20,000 Canadian users who joined a Facebook group against a government-ledcopyright reform bill for the delay in the introduction of the bill in late 2008 (Nowak, 2008)