The document provides an introduction to social media trends such as Twitter, Facebook, and blogs. It discusses how Web 2.0 uses the web as a platform and enables sharing, engagement, and community building through two-way conversations. Examples of social media sites include networking sites, bookmarking sites, photo/video sharing sites, blogs, and wikis. The document also discusses using social media to market yourself and your services, and how engagement with users and other organizations can help with promotion, news, and raising awareness.