Online activism groups formed on social networking sites like Facebook and Twitter can effectively connect people and organize protests, but may lack dedication over time. The document discusses several examples of Facebook groups that rapidly gained members to support political causes, such as supporting monk protests in Burma and freeing an imprisoned Egyptian blogger. However, it also notes that the low level of dedication on social networks can be a problem for long-term online activism. While social media allows wide reach, the level of engagement may drop off unless people are highly motivated by the cause.