I’ve spent sometime messing around with PmWiki
PmWiki is written in PHP and distributed under the General Public License. It is designed to be simple to install, customize, and maintain for a variety of applications.
PmWiki seems very east to install, only requires php, no database is needed and is easily skin-able. here is my test install.
One nice idea behind pmWiki is that the core is kept small and lots of features are available as add-ons. For example, I’ve tested the quicktime recipe and the rss one. There are a pile of interesting looking recipes on the PmWiki Cookbook.
I am thinking of installing this on the Sandaig Website firstly as a tool for myself, but perhaps as an alternative way for pupils to contribute to the website. I am not too sure how they would get on with wiki style markup, but I am sure they could manage the simpler stuff. I need to play around with the configuration and user authentication before I think about that.