Registration & Editing
I highly recommend adding a "Captcha" function to the Saab Wiki for joining and for editing pages. They aren't fool-proof by any means, but doing so will dramatically reduce the amount of spam and vandalism that is taking place on your site.
I belong to a few other Wiki sites, one of which was on the verge of being totally over-run by spam. Since adding a captcha earlier this year, there has been no spam-bot vandalism.
I have absolutely no knowledge on how to implement them though. Check them out here: