- A nonprofit organization that supports Wikipedia and other Wikimedia projects.

- Responsible for the overall governance and funding of Wikipedia.

Volunteer contributors

- The primary content creators on Wikipedia.

- Anyone can edit Wikipedia, regardless of their experience or expertise.

- Contributors come from all over the world and have a wide range of backgrounds.

Administrators

- Wikipedia users who have been granted additional privileges, such as the ability to delete pages, block users, and protect pages from editing.

- Administrators are elected by the community of Wikipedia contributors.

Bureaucrats

- Wikipedia users who have been granted the ability to create new administrators.

- Bureaucrats are elected by the community of Wikipedia contributors.

Other roles

- In addition to the roles listed above, there are a number of other roles that Wikipedia contributors can fill, such as:

- Content reviewers

- Translators

- Designers

- Developers

- Community organizers

Summary

Wikipedia is a collaborative project that relies on the contributions of thousands of volunteers. The Wikimedia Foundation provides the overall governance and funding for Wikipedia, while volunteer contributors create and edit the content. Administrators and bureaucrats are elected by the community of Wikipedia contributors to help maintain the quality of the encyclopedia.