Internet activism is the use of electronic communication technologies such as social media, e-mail, and podcasts for various forms of activism to enable faster and more effective communication by citizen movements, the delivery of particular information to large and specific audiences as well as coordination. Internet technologies are used for cause-related fundraising, community building, lobbying, and organizing. A digital activism campaign is "an organized public effort, making collective claims on a target authority, in which civic initiators or supporters use digital media." Research has started to address specifically how activist/advocacy groups in the U.S. and Canada are using social media to achieve digital activism objectives. Types Within online activism Sandor Vegh distinguished three principal categories: active/reactive, mobilizing and awareness raising-based. There are other ways of classifying Internet activism, such as by the degree of reliance on the Internet versus offline mobilization. Thus, Internet sleuthing or hacking could be viewed as purely online forms of activism, whereas the Occupy Wall Street movement was mainly conducted offline, and only partially online. Development processes Exploring the dynamics of online activism for expressing resistance to a powerful organization, a study developed a critical mass approach to online activism. The results were integrated in a four-year longitudinal process model that explains how online activism started, generated societal outcomes, and changed over time. The model suggests that online activism helped organize collective actions and amplify the conditions for revolutionary movements to form. Yet, it provoked elites' reactions such as Internet filtering and surveillance, which do not only promote self-censorship and generate digital divide, but contribute to the ultimate decline of activism over time. The process model suggests a complex interplay among stakeholders' interests, opportunities for activism, costs, and outcomes that are neither foreseen nor entirely predictable. The authors challenge universal access to the Internet as a convenient and cost-free forum for practicing social activism by organizational stakeholders (customers, employees, outside parties). In fact, the technology enablers of social activism also enable its filtering and repression, and thus, more extreme states of information asymmetry may result in which powerful elites preserve their status and impose a greater digital divide. In one study, a discussion of a developmental model of political mobilization is discussed. By citizens joining groups and creating discussion, they are beginning their first stage of involvement. Progressively, it is hoped that they will begin signing petitions online and graduating to offline contact as long as