Which Wiki?
Thinking ahead to the development of programmingphp.com. It will be run with a wiki, but which wiki? phpDirectory has a good list of the more popular open source wiki applications. I was wavering between MediaWiki and DokuWiki, but I think this SitePoint blog post has just moved DokuWiki into first place. DokuWiki also has a good wiki comparison table that's helpful for evaluating which wiki is right for you.
