WP Help
Add to ListSite operators can create detailed, hierarchical documentation for the site’s authors, editors, and contributors, viewable in the WordPress admin. Powered by Custom Post Types, you get all the power of WordPress to create, edit, and arrange your documentation. Perfect for customized client sites. Never send another “here’s how to use your site” e-mail again!
NEW: You can now pull in help documents from another WP Help install, and they will be automatically updated when the source documents change (even additions and deletions!). Perfect for WordPress multisite installs, or consultants with a large number of client installs.