XWiki

XWiki Enterprise is a professional wiki with enterprise features such as Blog, strong rights management, LDAP authentication, PDF export, full skining and more. It also includes an advanced Form and scripting engine making it a development environment for data-based applications. It has powerful extensibility features such as scripting in pages, plugins and a highly modular architecture.

How to use

Ask adminow2 AT ow2.org, he will create a wiki for your project.