Part of the growing success of online education may be due to the increasing use of social media in online classes. Social media encompasses several types of interaction and communication web sites, including blogs, microblogs, wikis, social network sites, social bookmarking, photography sharing, video sharing, virtual worlds, game sharing, and many others. Common examples of social media are Facebook, Twitter, and YouTube. Online education has capitalized on the expanded opportunities offered by social media sites that allow user-created content and group interaction without a fee.
