42matters Explorer - Explorer by 42matters is a research tool to visually explore databases of apps, publishers, audiences, SDKs, technologies, contacts and others.
GitBook - Modern Publishing, Simply taking your books from ideas to finished, polished books.
Apache Jackrabbit - Apache Jackrabbit content repository is a fully conforming implementation of the content repository for Java technology API.
MkDocs - Project documentation with Markdown.
Gravatar - Gravatar (an abbreviation for globally recognized avatar) is a service for providing...
Docusaurus - Easy to maintain open source documentation websites