One of my ongoing projects at work has been to document the test procedures and processes we use. I initially started with putting them into a CMS (e107) but recently decided to switch to a wiki format. Inspired by CharlestonWiki and after using Mediawiki for a couple other wiki documentation projects in the department, I've started up my own medical physics wiki project.
For the most part, It's going to contain all the test procedures and work processes specific to the way we do medical physics here in MUSC Radiology, but I plan to include a lot of other general diagnostic medical physics stuff as well. It'll be a place for me to dump all the stuff I know about diagnostic medical physics and imaging. It's going to primarily be for personal reference, but if other people benefit from it, so much the better.