The document discusses how environmental organizations can use social media. It provides examples of how social media is used to promote missions, manage reputations, listen to audiences, react quickly, keep up with research, spread news and campaigns, raise support and awareness, and track supporter interests. It also discusses strategies for using social media, including choosing platforms, budgeting resources, and entrance/exit strategies. Popular social media in Vietnam include blogs, Facebook, Yahoo 360, and Baomoi mobile news.