For general feedback about the game.Steam Support
Visit the support site for any issues you may be having with the game or Steam.
TF2Killcams.com is a website dedicated to things worth a thousand words but only dedicates a few short ones to them. To celebrate their 1000th post they're holding a kill cam contest! Details for the contest are located here. If having a chuckle at the unfortunate demise of the Scout isn't enough they've also upped the ante with prizes!