For general feedback about the game.Steam Support
Visit the support site for any issues you may be having with the game or Steam.
United Gaming Clans are starting up their Highlander, 6v6, and new 4v4 league for the 2014 season. The first week of matches starts January 20th for Highlander, January 22nd for 6's and January 24th for 4v4. UGC has divisions in North America, South America, Europe, Asia, and Australia/New Zealand. Players from any of these regions are encouraged to sign up and join the fun! Remember, February 2nd is the last day that teams can sign up. Visit the UGC website for more information.
Additionally, the UGC folks are trying a new experiment this season: Over the next several months they'll be organizing a community donation drive for competitive TF2 prize pools. If you're interested in contributing, visit their fundraiser page for more information.