Social learning tools as a way to include students who are at home due to illness into collaborative discussions held in class. Twitter is an established micro-blogging service available to individuals with Internet access world-wide and provides unlimited access to social networks for its users, to send and receive messages. In 2006, it was funded by Jack Dorsey, Noah Glass, Biz Stone, and Evan Williams. One of the common site users is media outlets to broadcast current news updates. For this reason, people use Twitter as a daily source of information to inform themselves on local and world news. Another way that Twitter
Jack Dorsey company in Oakland to dispatch couriers, taxis, and emergency services from the Web. His other projects and ideas at this time included networks of medical devices and a "frictionless service market". In July 2000, building on dispatching and inspired in part by LiveJournal and by AOL Instant Messenger, he had the idea for a Web-based realtime status/short message communication service. When he first saw implementations of instant messaging, Dorsey wondered whether the software's user status output could be shared easily among friends. He approached Odeo, which at the time happened to be interested in text messaging. Dorsey and Biz Stone