If you've ever wanted to roll your own wiki and are not intimidated by having to deal with some of the technical underpinnings that come with an industrial-strength wiki solution, you might want to take a look at MoinMoin. This open source, Python-based wiki features revision tracking, wiki formatting, data import and export, and more.

Installing MoinMoin is not difficult: I already happened to have the Python scripting language installed, so I just unpacked the MoinMoin archive and ran wikiserver.py. That was it: MoinMoin started, and I was able to access it on http://localhost:8080 less than a minute after downloading it. (That said, anyone who thinks Python is just a snake or a bunch of funny Englishmen might have a harder time.) The console window remains open as long as MoinMoin is running, displaying a Matrix-esque stream of logging information showing exactly what's going on in your wiki. If it gets in the way, you can always minimize it to your system tray using Minime.

Unlike Tomboy and many other personal knowledge management solutions, MoinMoin can easily support multiple users. You can start off by using it on your own, and when you need to collaborate, simply expand it to include your colleagues. MoinMoin may lack the pizzazz and intuitive simplicity of a desktop application, but it is a sturdy, professional wiki.

Note: The download link take you to the MoinMoinDownload page, where you can download the latest version and read installation structions.

--Erez Zukerman