I had the hardest time convincing anyone to use the wiki, possibly because several of the people who needed to be using it weren't technical and didn't really u

I had the hardest time convincing anyone to use the wiki, possibly because several of the people who needed to be using it weren't technical and didn't really understand the benefit. But then we moved away from our ISP's awful email service to Google Apps for Business and people started using Google Docs. Docs is now our de-facto wiki. I think the reason people use it is a combination of familiarity (everyone understands a word processor), constant reminders (everyone gets an email when a new document is added), and peer pressure.