What in the World is Microblogging?
Microblogging is a form of blogging that allows users to write brief text updates (usually 140 characters in length) and publish them, either to be viewed by anyone or by a restricted group, which can be chosen by the user. These messages can be submitted by a variety of means, including text messaging, instant messaging, email, MP3 or the web.
Edmodo is likened to Twitter, but it's way more powerful and is feature-laden. For example teachers, students, or workgroups can send notes, links, files, alerts, assignments, and events to each other in a collaborative environment. But unlike Twitter, Edmodo is private, unless the public component is enabled. If enabled, the public component allows the general public to view the group site somewhat like The Massachusetts Institute of Technology’s (MIT) OpenCourseWare site that features free lecture notes, exams, and videos all from MIT without any required registration.