Updates to Left 4 Dead 2 have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Left 4 Dead 2
New mutation: Healthpackalypse!
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Updates to Counter-Strike: Source have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Counter-Strike: Source
Added Steam Clan Tag support ( Set yours in Options->Multiplayer->Advanced )
Added new achievement "CLAN WARFARE": Win a match of at least 10 players where the entirety of each team is composed of a single clan.
All weapon fire rates now tuned to match their pre-update, tickrate 100 equivalents. (http://forums.steampowered.com/forums/showthread.php?t=1368659)
Added automatic ... [read more]

Medal of Honor (PC)Danger Close formed under EALA umbrella.
Get the full article at ign.com

Updates to Left 4 Dead 2 have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Left 4 Dead 2
Added additional protection for critical files
All add-on files will be loaded when connecting to a Non-Official server regardless of game mode
Only approved custom maps will be loaded when connecting to an Official server
Player's can print the contents of the consistency list with "cl_print_consistency_list". If the server has sv_... [read more]

Updates to Team Fortress 2, Counter-Strike: Source and Day of Defeat: Source have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Server Browser
Fixed the server browser not saving filter settings properly

Team Fortress 2
Fixed a speed exploit related to benchmarks
Fixed Parasite hat not being posed correctly on class loadout panels
Fixed a level change crash
Get the full article at store.steampowered.com

Updates to Team Fortress 2 have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Team Fortress 2
Added a Parasite hat to celebrate the release of Alien Swarm (http://www.alienswarm.com/)
Fixed a client crash when opening the backpack while running in a language other than English.
Fixed not being able to pick-up buildings in Arena mode.
Fixed an exploit that allowed team kills with Wrangled sentries.
Fixed a bug where teleporters could be given more... [read more]

Call of Duty: Modern Warfare 2 (PC)Activision has "no plans" to charge gamers to play multiplayer.
Get the full article at ign.com

Innovation key to Guitar Hero turnaround.
Get the full article at ign.com

Updates to Left 4 Dead 2 have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Changes:
New mutation: Hard Eight
Get the full article at store.steampowered.com

Just a quick, but excited note: TF2maps.net has opened their doors on their new Art Pass Contest.

It's a fantastic opportunity for everyone involved: you get a chance to show us how much better at detailing maps than we are, and our (ex) art team gets a chance to find new jobs at companies that still need their kind!
Get the full article at store.steampowered.com