DocGen - Static website generator
Kalam Labs - Twitch for Science
openSourceCM - Web-based legal document processing and contract management
RunaWFE - RunaWFE Free is a free Open Source BPMS (business process management system), which serves to optimize and automate business processes (for Windows, Linux, Mac OS).
LogicalDOC - A document management system such as LogicalDOC can help your organization better manage business processes and put order in the chaos of documents every day run your business.
Littlecodr - Insanely fun card game that teaches kids the basics of code