The OpenOffice.org Documentation Project Wiki
This project creates and maintains documentation in English for OpenOffice.org. Documentation can include user guides, FAQs, How Tos, samples, User Templates, the application help and training materials. The project has a home page on the web as well.
This is a wiki, so feel free to contribute to Apache OpenOffice documentation!
If you cannot find what you're looking for, check out the the OpenOffice.org User Forum.