FSF

The Free Software Foundation (FSF) is a nonprofit with a worldwide mission to promote computer user freedom and to defend the rights of all free software users, http://www.fsf.org/

• 3.6. Guide
• 3.1. Mindset
• 3.5. People

OSI

The Open Source Initiative (OSI) is a global non-profit focused on promoting and protecting open source software, development and communities, http://opensource.org/

• 3.1. Mindset
• 3.5. People

OSI-approved

Open source licenses are licenses that comply with the Open Source Definition and completed OSI license review process, see http://opensource.org/licenses.