a free source code editor which supports several programming languages running under the MS Windows environment. based on Scintilla edit component (a very powerful editor component)
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. Demos Each of these demos is globally collaborative, meaning everyone is sharing the same space. With luck there will be someone else using these demos with whom you can play. If not, open the demos in two different windows and collaborate with yourself. Editor A simple collaborative plain-text editor. MobWrite is extremely good at resolving collisions which other systems would fail on. Form This form demonstrates collaboration with all the standard HTML form elements. Note that the onchange event is called remotely when the checkbox is ticked, thus allowing forms to react normally to changes. Spreadsheet This 50-cell spreadsheet is an abuse of MobWrite (there are more efficient ways of synchronizing grids of data). But it shows what can be done.
Moksha is a platform for creating live collaborative applications. It provides a layer of cohesion and collaboration between existing applications, services, and communities.
Sage lets you build rich, highly functional, cross platform web-enabled desktop applications and applets by simply marking up the UI and attaching JavaScript (or Ruby, Python, etc.) event handlers. You simply point sage to a URL and it downloads the markup and accompanying scripts and renders the application or applet in real-time (the same way a browser renders documents). All that is required to run Sage is a Java Virtual Machine (v1.5 or later, v1.6 preferred).
ajaxWM is a window manager in a web browser, a terminal emulator and an SSH proxy. It allows remote controlling a computer even when there is a firewall and packet analyzer between, blocking everything else than HTTP(S)-connections. Because the ajaxWM client runs in any javascript-capable web browser, you can even use it when you are not allowed to install any software, for example in an internet café, at school, or at work.