Web Messenger allows for real-time text-based communication between devices over a network like the Internet. It originated from chat features on the PLATO system developed in 1960 for computer education. PLATO Notes, an early online message board created in 1973, was one of the first examples of online community features. Popular chat software today includes AIM, Windows Live Messenger, Yahoo Messenger, ICQ, Skype, and Tencent QQ.