Wikimedia is one of the most recognizable open source projects in the world. It is the parent organization of Wikipedia, the free encyclopedia.
As the organization behind the popular browser Firefox, Mozilla provides an open-source alternative to closed-source browsers like Chrome, Safari, and Internet Explorer.
A licensing alternative to traditional copyright which can require some combination of attribution, no commercial use, no creation of derivatives, and CC licensing of derivatives.
An open source blogging platform, now among the most popular in the world.
“The Open Source Initiative (OSI) is a non-profit corporation formed to educate about and advocate for the benefits of open source and to build bridges among different constituencies in the open-source community.”