I have some seller friends who are starting to have some success on eCrater and other places. They love it because the costs are so low and buyers are starting to find them. I've been having good success through my Yahoo Business Solutions. It just takes some time, patience and promotion so it can be done without Ebay.
Personally, I have had zero success unless it was on Google base. You get no traffic to those sites unless it's listed or linked to google. My theory is list directly on Google. It works but I don't have the "luxury" of creating some idiotic cyber-store. People search, people find, people buy. No "store" here no more. Ecrater and onlineauction.com are just a waste of time in my experience.