For general feedback about the game.Steam Support
Visit the support site for any issues you may be having with the game or Steam.
The Summer 72hr TF2Jam received over 500 entries including maps, videos, posters, drawings, food, fan fiction, music, mods, and even an entire game. Now the fine people at TF2Maps have created a Showcase to display the cream of the proverbial crop. Read more about it here to see if your submission made it in!