EtherCalc is a web spreadsheet. Your data is saved on the web, and people can edit the same document at the same time. Everybody's changes are instantly reflected on all screens.
ShareJS is an Operational Transform library for NodeJS & browsers. It lets you easily do live concurrent editing in your app.
Saros is an Eclipse plugin for collaborative text editing that can support arbitrarily many participants at once. All members of a session have an identical copy of an Eclipse project and Saros keeps these copies in sync as editing progresses.
MobWrite converts forms and web applications into collaborative environments. Create a simple single-user system, add one line of JavaScript, and instantly get a collaborative system.
Formerly known as OpenGoo, Feng Office Collaboration Platform enables you to: * Manage your projects and business services * Collaborate with your team and your customers * Organize and share documents and files
Public Etherpad Instance (warning: right now no data can be deleted)
EtherPad EtherPad is the only web-based word processor that allows people to work together in really real-time.
jinfinote is a JavaScript implementation of the Infinote protocol, an open standard for software supporting collaborative real-time editing of text files. The goal of this project is to aid in creating a collaborative real-time editor for the web, similiar to EtherPad. Desktop editors such as Gobby are already available for many platforms, and the intention is to close the missing link to the browser.
Openfire is a real time collaboration (RTC) server licensed under the Open Source GPL.
