The OpenEdge Hive

ProJAX is an implementation of AJAX designed to get Progress developers, especially those working in legacy environments, up and running with a minimum of muss or fuss. ProJAX makes it simple to leverage your existing Progress 4GL programming skills to deliver rich and responsive web applications without annoying delays and timeouts for page refreshes.

Ganimede - Transaction server for Progress RDBMS

The project was started as an "open-source" alternative to Webspeed commercial product from Progress Software Corporation. The "open-source" project is hosted on SourceForge site – the license used is GNU LGPL