Just finished reviewing and evaluating the Leveraging Technology class Wiki projects. I asked the class to create sample intranet content using the Wiki for our class 'fake' company, Ellis Todd Associates.
I was really very pleased with the project and the quality of the student's efforts. One page had more than 200 revisions. The class created content and not just text and links. We had embedded polls from Zoho Polls, YouTube video, presentations from SlideShare and Meebo Me widgets.
The project hammered home the point for me that HR staffs, no matter how small, or seemingly technologically unprepared, can effectively utilize Wiki for numerous purposed. My students built the foundation for a decent small company intranet in about 6 weeks, with no prior experience, all in their free time.
If you are a small organization wondering if wiki technology is right for you, I think the answer is probably yes. Drop me a note or leave a comment and maybe I (or one of my students) can help.