OGDL is a structured format for representing graphs of information, alternative to XML. Its grammar is very simple allowing for compact parsers. The text version is easily readable; the binary version is used for storage and interprocess communication.
A Web-Application working in conjunction with the obby protocol to view documents written by other people live on a website, integrated with mediawiki and equipped with full LaTex support. It's main purpose is Real-Time Note-Taking at University