2009/5/29 Philip Boulain <prb@ecs.soton.ac.uk>
On 29 May 2009, at 14:50, Daniel Silverstone wrote:
Option 2: Mediawiki

On the flipside, this is balanced by its dominance meaning that there being a lot of people applying gaffer tape to it to keep it progressing and vaguely working. There are also extensions which may be useful for dealing with bug reports etc., such as Semantic MediaWiki[1] and Semantic Forms[2]; piles upon piles of ugly hacks, but the user experience can be that you can then create instances of types of things, and have a nice little form for people to fill in details.

If it's not a complete ballache to administer, this would be my preference, simply because it's what I'd expect people to be most familiar with.  I understand that MediaWiki+PostgreSQL is now stable -- Citizendium uses it, for example.