There´s quite a few sites related to Team Fortress 2 trading out there, some good and some are bad, in this post I will try and guide you through this jungle of sites and showing you some of my favourite sites when it comes to TF2 trading. I´ll be covering sites you buy & sell hats and items on, places you can buy items for real money, trading forums & servers. If there´s any topic you think I am missing feel free to get in touch via Steam or in the comments of this post.
Buying & Selling items
I will start of the list with some sites where you can sell your silly little hats on.
TF2Outpost is a fantastic place to find trades of others and to post your own trades. The site doesn’t just support TF2 items, you can make listings for all Steam items. One of the biggest trading site around.
Backpack.tf is also a good place to list your items for sale, the site offer pretty easy navigation and in my experience it´s easier to find the best deals here, just because the items are sorted by price. It´s also a good place to check the value of items, if your unsure what a item is worth just do a quick search on Backpack.tf
Dispenser.tf is a site that helps you list your items and also automate the trading process, it´s defiantly one of my favourite sites when it comes to Steam trading. You can get a free bot that you put your items on, you set your price and then buyers can come to the site to trade and the bot will do the trade for you, very convenient for both sellers & buyers.
Bazaar.tf is a similar trading site like TF2outpost where you can list your items for sale and find others listings. The site isn’t as popular and hasn’t as many users but it´s a site with a bunch of nice features, like automated trading with the sites bots for example.
Trade.tf is a site packed with a bunch of features all traders should check out. They have a Good deals page where the site scans the major trading sites for good deals. But there´s also a part of the site that´s called the Trading market, here people can use the sites inbuilt trading bot system to make trades for them. The bot is free to use for anyone, you just tell the bot what items you want to sell and for how much, then the bot will do the trading for you. The trading market on trade.tf is also a good place to find things to buy, everything people list using the bot ends up here, you can just search for any tf2 item you want to buy, another great thing is that all these trades will be almost instantly accepted just because they are controlled by bots.
/r/TF2trade is a subreddit that´s all about trading tf2 items, here you can list your items or reply and make offers on other peoples trades.
Buying items for money
In this category I will list a few shops that sell TF2 items, If your looking for places to buy items for real money directly from other traders I suggest you head over to Sourceop trading forum or Backpack.tf forum. The rest of the list in this category will be shops that deal with Tf2 items, all are selling for real money and some you can even sell your own stuff there.
G2A is the game store that has also jumped on to the pixel hat market and started selling a bunch of different Steam items including TF2 stuff. They accept pretty much any payment, everything from Paypal, Paysafe and Bitcoins.
Opskins is mainly a place where people buy & sell CS:Go skins, but not so long ago they added so that it´s possible to trade TF2 hats & items too. You can also put up your own items and sell them for real money, just keep in mind that there´s a fee on all sales (10% or 5% if you have a paid monthly membership)
Marketplace.tf is a shop that´s only devoted to TF2 hats and items. You´ll find everything from keys to unusuals here. It´s being runned by the same people over at Scrap.tf. They accept paypal & bitcoins
SourceOP has a pretty OK forum for trading and as mentioned before you can find quite a few traders wanting to sell/buy for real money here.
Backpack.tf´s forum would probably be the biggest forum around, you can find both cash and item trading sections here and also a section for Team Fortress 2 Economy discussions.
Last forum on the list is the Steam Community TF2 Trading forum which is a forum on the official steam website. One of the most busiest forums around with a lot of post for sales being posted all the time, in my opinion this place feels a bit spammy and cluttered thou, just way to many post about ridiculous trades nobody want to do, but I don´t have that much experience about the forum so I might be wrong.
Tf2 Trading server
I personally don´t like or use TF2 trade servers but I know a lot of people do, I got some help building this list but if you have any suggestions I would love to hear them because I´m a bit clueless when it comes to servers really. Hopefully this can get you started with finding a server you like.
Neonheights servers has 7 trading servers up and running.
PyroProtectMe Trade Server for regular and unusual trading.
Darkly Gaming Trading servers has 6 servers up can running, check the link to find the IP for them.
Harpoon Gaming has 4 servers online.
Backpack.tf server list is a list filled with all the server that are using the Backpack.tf Price Check plugin, There´s a shitload of servers in this list and not all are trader servers, but chances are pretty high that it´s a trade server if they are using that plugin.
Over at Gameserver Directory there´s a list of trading servers you can check out.
Other useful TF2 sites
Scrap.tf is a site where you can turn your unwanted items into what you want in a few minutes. You can trade with the scrap.tf bots and trade in your weapons, metal, keys, hat or a bunch of other items into metal, and because your trading with the sites bots the trades goes really fast. The downside is of course that you will get less for all your items, your paying for getting want you want fast.
Calculator.tf is a simple tool that´s great for any trader. It´s basically a calculator that let´s you convert between different TF2 currencies. For example you can type in how many keys you have and then the calculator will tell you have much metal/$/earbuds those keys are worth.
If you have any suggestions of your own feel free to leave a comment below and I´ll might add it to the list.