One of the reasons I started this blog was from coming across www.tradingcarddb.com (user name CrazieJoe - no surprise there I guess). I keep my collection updated there, as well as all cards I have available for trade. I am always happy to entertain trades, so just get in touch if you have one in mind.
A direct link to my collection is here.
Cards still listed in my collection that are not part of a set of what I collect, I would still likely trade - they are just listed in my collection as I only have one.
My wants are there as well, except to the extent of getting duplicate Jays and Leafs - these aren't listed, but always welcome. It will also have wants for sets I am working on.