Started in 1983, Boston CitiNet was a local online service operated by Applied Videotex Systems, Inc. of Belmont, Massachusetts. The service allowed modem-equipped personal computer users to dial-in and access a range of information and messaging services including chat, forums, email and a variety of content. There were several other companies offering paid/subscription services as the time like The Source, CompuServe and Boston-based Delphi. Boston Citinet was unique since it was free to access and was supported by advertising. Messaging services such as email and chat required registration and a monthly fee of $9.95 - an early example of the now popular freemium business model.