I use DokuWiki as a very straightforward way to publish documentation on the web. The default template has been a little bit modified to create a menu and do some styling. Three years ago, DokuWiki allowed me to create a documentation website for the library in a very short time. Without DokuWiki, no website would come into being that time, and as of today, the library would be most probably dead. Thanks to DokuWiki, it now has hundreds of users and its development is ongoing!