- "Mann-conomy" FAQ: The official Valve FAQ on trading
- List A or List B: Quick and simple lists of all items currently available.
- Offical Valve Wiki: Has detailed info on every item and everything else to do with TF2
- TF2 Items backpack examiner: See what another player has and give out links to your own stuff.
- TF2 Items Trading Site: If you register here you can list all the items in your backpack and what you would like to trade them for and then it will give you steam id links for anybody who has a matching offer. May not work for more complex trades.
- TF2B backpack examiner: Alternative backpack examiner site.
- TF2 Trading Post: Trading Site - lets you indicate what you would like to trade and help you find suitable trading partners.
PM me or any admin/mod if you have any other suggestions for this list.