ATTN Auctioneers/AH Managers: if you want to be listed on
http://kittycatauctions.blogspot.com, please direct notecards to Draco or Theodore Nacht and we'll add you/change your time/whatever you require. We've been maintaining that calendar since April 4, 2011, and our policy has always been to only add/change data when it's given to us. If we are ever inaccurate/incomplete, that would be why.
That said, if someone else wants to maintain a purely online (no SL necessary) resource including SLURLs to all the auction houses and keep track of all the data, please do go for it. The more information and unbiased resources we have available to the community, the better. A sleeker, more unified interface can only lead to better auction attendance for us all.
Eth, I'm all on board with the wiki, and I'm so excited by the progress you've made. This is going to be a fantastic community resource, and I'll be happy to point people to it.