Try Galoo ( http://www.galoo.com ) it is different from anything else on internet. There you can actually meet (online, of course) your buyers and even negotiate about final price and conditions. It is free for registration and you are paying small fee on successfully done deal.
Kijiji, Craigslist, your own website
I've heard good things about etsy. Good luck!
i would go for tripleclicks
similar to ebay, amazon
