A new aggregator of used equipment for sale
There are several websites that list used equipment for sale. Here is a new website that makes a list of equipment, in this case McIntosh, that is for sale on Ebay:
http://www.mcintoshstereoamplifiers.com
I am curious how much people use sites like this. We thought of doing one, even of making it a page in the magazine each month, one that would display components for sale for all brands of equipment.
But then we thought that nobody would be all that interested in yet another classifieds page - and it would likely antagonize all the other sites that do this: Audio Asylum, AudioXSell, Audiogon, etc…. especially if we screen scraped them like Oodle does 
You also got:
# eCoustics.com.
# Audio Video Marketplace
# Audio Shopper
# Avmarket
# Canuck Audio Mart
# HiFi Classifieds
# HigherFi
and every forum and forum wannabe has associated classifieds ads it seems.
Everyone wants to unseat Audiogon - but no one has made much headway as far as I can tell.
