I am very impressed with Tikiwiki. I am trying to get my managers to buy into the idea of a Knowledge Base for our IT Support Help Desk. My idea is to use a wiki as the KB. After finding Tikiwiki, I expanded the whole concept to being a portal, with a Blog as the home page, so users could get up to date info immediately they go to the site. File gallery can deliver viruses fixes.
This package is incredibly powerful. Congrats guys. I have noticed a number of other possible uses for this. I work in a tertiary ed environment, so there are some exciting possibilities. I have some PHP knowledge, but not enough to feel competent enough to make contributions, but I might try making some changes locally.