Perhaps this opensource writing software could be adapted to lesson or course design outlines by teachers too. Hmmm, interesting. See also script writing tool Celtx.
"Coursefork is a platform for open-sourcing and collaborating on educational material. We've built a way to upload course material, allow others to create copies, modify them for their own use, and share their improvements both back "upstream" and to the community at large"
WalkHub is a web application that makes it easy to record and share Walkthrough tutorials that play on top of websites. Screencast recording. Opensource. Free.
OpenClass is a dynamic, scalable, fully cloud-based learning environment that stimulates social learning and enables the distribution of content at massive scale to students wherever they are.
"Ever needed custom formatted sample / test data, like, bad? Well, that's the idea of this script. It's a free, open source tool written in JavaScript, PHP and MySQL that lets you quickly generate large volumes of custom data in a variety of formats for use in testing software, populating databases, and... so on and so forth."
ownCloud gives you universal access to your files through a web interface or WebDAV. It also provides a platform to easily view & sync your contacts, calendars and bookmarks across all your devices and enables basic editing right on the web. Installation has minimal server requirements, doesn't need special permissions and is quick. ownCloud is extendable via a simple but powerful API for applications and plugins.
"Sash is a badge issuing & hosting service that follows the metadata format of the awesome Mozilla Open Badge Infrastructure project. Allows developers to stand up their own badging platform and integrate badge creation, issuing and displaying into their own products."
on GitHub