Ether Pad-multiple persons can edit the web document at same time

EtherPad is a web-based collaborative real-time editor, allowing up to eight people to edit a text document at the same time, and see all of the participants' edits in real-time, each in their own color. Participants can permanently save revisions at any time, and it provides a separate chat box in the sidebar. Automated markup of JavaScript code was made available shortly after the launch. EtherPad itself is implemented in JavaScript, on top of AppJet, with the real-time functionality achieved through Comet streaming. At the time of its launch, EtherPad was the first web application to achieve true real-time performance, a feat previously only achieved by desktop applications such as SubEthaEdit (for Mac), Gobby or MoonEdit (both multi-platform). Existing web editors at the time could only achieve near-real-time performance.