It is a movement that promotes freedom to distribute and modify creative, scientific, and technical works. Its principles are:

•  Open Access: Facilitates access to information and knowledge.
•  Collaboration: Fosters cooperation between individuals and communities.
•  Sharing knowledge: Promotes the dissemination and exchange of ideas.

Examples:

• Wikipedia: Free and collaborative encyclopedia.
• OpenStreetMap: Worldwide editable map by anyone.
• Free Software Projects: Linux, Apache.