CommunityFortress

Many within the community play in #tf2.pug.na on Gamesurge.net for their TF2 pick-up-games.  If you want to check out demos of these games (or find a demo of a game that you participated in), go here: http://demos.tf2pug.org/. 

I'd also like to give a shoutout to the TF2 Log Parser.  Although it has fallen into disuse, it is very helpful if you want to analyze your scrims/matches.  Check it out here: http://www.thursday.com/tf2logger/index.php.