I am always looking to trade (probably a little too much). When we first started collecting PEZ, I joined the PEZHeads Group on Yahoo. If you're a new collector or if you've been collecting for awhile, being apart of the group is the best decision you can make. It's a great place to meet other collectors, stay up-to-date with PEZ info and get all the details on the latest conventions. There are always other members waiting to answer any questions you may have. On a personal note, through this group I have met some of the nicest people on the planet. There are some really great people and they are all willing to help in any way possible.
If you aren't a part of the group yet, do yourself a favor and join!
PEZHeads Yahoo Group