The best FAQ/KB system that we have found is an open source one called PHP MyFAQ (
http://www.phpmyfaq.de/). It has to be the best system that we have ever used (of about 20 different ones, including commercial systems). Rather than giving it a glowing review, here are the features listed on their site:
phpMyFAQ 1.4 is a multilingual, completely database-driven FAQ-system. For the time being a MySQL database (support for other databases is under development) is used to store all data, PHP 4.1.0 (or higher) is needed in order to access this data. phpMyFAQ also offers a Content Management-System, flexible multi-user support, a news-system, user-tracking, language modules, templates, extensive XML-support, PDF-support, a backup-system and an easy to use installation script. The phpMyFAQ offers the following features:
Content Management System:
You can administrate your users, news, themes, categories and records in the password protected admin area.
User Administration:
Selected users can edit and administrate records.
Record Administration:
Your users can write new records, the administrator has te unlock the record. The admin can also edit the record, move into a another category oder delete the record.
WYSIWYG editor:
Write your articles like you do in OpenOffice.org or Word.
Image Manager:
The Image Manager provides an web interface to browse for image files (JPEG, PNG, GIF, and others) on the web server.
News Administration:
Write news that appear on the FAQ mainpage.
User-Tracking:
Analyze the way of your users through your FAQ.
User-Voting:
With the voting of the users you can analyze the quality of your records.
Top 10:
You'll get a Top 10 with ten of the most popular records.
Language files:
phpMyFAQ supports more than 15 languages including Arabic, Chinese and Vietnamese.
Multilanguage support:
Write records in different languages.
Template system:
Custimize your FAQ to your webdesign.
Simple installation and configuration:
Install and set up your FAQ only with your browser!
Four different views for records:
XHTML, printer optimized XHTML, PDF und XML
XML-RPC interface:
Support for searching over the internet.
Backup:
export and import from SQL tables
Community module:
Users can write questions to the system, so that other user can answer these questions.
Send2Friend:
User can send records up to five friends with email.
PHP 4.1 support:
Full support for PHP 4.1 and higher with register_globals = off.
PHP 5 ready
phpMyFAQ 1.4.x works with PHP 5.