The document discusses online communities in learning and social networking. It defines an online community as a group of people coming together online for a common purpose or interest, typically using chat rooms, mailing lists, and forums. It notes that online learning communities can be educationally and personally fulfilling when students fully engage with the material and each other. Examples of online communities for learning include Canvas, Google Classroom, Edmodo, and Schoology. The document distinguishes social networks from online communities, noting that social networks focus more on personal connections to local friends and family, while online communities connect strangers with shared interests.