Docusaurus - Easy to maintain open source documentation websites
MindTickle - MindTickle is a sales readiness platform to reduce ramp time, drive consistent messaging, & ensure effective field communication
DocFX - A documentation generation tool for API reference and Markdown files!
eFront - eFront learning management system is the leading open source and custom software solution for your company's training needs.
Doxygen - Generate documentation from source code
Brainshark - Brainshark sales enablement solutions help deliver the content you need to sell, market, educate and inform with maximum impact – all within Salesforce.com.