I notice general system administration questions get asked on this list as well as ones relating directly to accessibility. I've used the site http://www.serverfault.com for general system administration questions and had good luck. To summerize it's a site where people ask and answer questions, and the answers get voted up and down based on the judgement of everyone viewing the questions. I've found that there are simply more eyeballs on the site then on email lists so am more likely to get a good answer quickly unless it's something very nitch like installing Jaws on windows 2008.