It may not be obvious but this site mixes a few different (open source of course) systems to make them all look like each other. First of all there is the above Wiki engine, which is our documentation section. Then you have the forums which run on www.phpbb.com and the issue tracker (which we can't live without) which uses www.mantisbugtracker.com. Then of course the information pages, which run on www.webbler.org (oops sorry, that one's not actually open source, but it's our own CMS) and then last but not least the newsletter bits are of course handled by www.phplist.com.
All quite tricky to make things look the same, but Bevan did a great job to pull it all together and Hernan is doing a great job to keep it all together.





