The first things that come to mind, of course, are sites like YouTube, LinkedIn, Facebook and MySpace, as well as services like Twitter. But, the idea of social media goes far beyond that. I turned to one of my favorite—though not necessarily most accurate—Internet resources for a definition.
Wikipedia, which is a form of social media itself, defines social media as "media designed to be disseminated through social interaction, created using highly accessible and scalable publishing techniques. Social media uses Internet and Web-based technologies to transform broadcast media monologues (one to many) into social media dialogs (many to many). It supports the democratization of knowledge and information, transforming people from content consumers into content producers."