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

Linux Dedicated Server
Improved connection logic to help servers that aren't automatically reconnecting to Steam, and added extra logging to track it
Added extra data gathering to help us understand and improve Linux performance

Team Fortress 2
Changed cl_flipviewmodels so it can no longer be set while connected to a server
Fixed problem wi... [read more]

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

Client
Removed an infinite ammo exploit for molotovs
The team swapping issue in Versus has been fixed

Add-on Campaign Support
Players download third party campaigns as single .VPK file
Players can manage and select add-on maps and campaigns via game UI
Added matchmaking support and download/update prompt for add-on campaigns
Custom campaign sup... [read more]

Activision and EA say their games with id are still a go.
Get the full article at ign.com

Updates to America's Army 3 have been released. The updates will be applied automatically when your Steam client is restarted. The specific changes include:

America's Army 3
Removes Password from AA3Launch.log
Fix for MBS not working after server changes to a new map
Fixes TeamReady in Mission Preplanning
Updated authentication SDK to improve reliability and performance
Fix for freezing on training mission load
Improved performance on loading maps/training missions
Fixed several small memory l... [read more]

Updates to Team Fortress 2, Half-Life 2: Episode 1 & 2, and Portal have been released. The updates will be applied automatically when your Steam client is restarted. The specific changes include:

Team Fortress 2, Episode 1 & 2, and Portal
Added support for the Novint Falcon

General
Added an option to the advanced multiplayer menu to select left or right handed view models
Fixed a bug where a spectator's wearable items could be seen floating around the player they were spectating
Fixed a bug ... [read more]

Left 4 Dead 2 (PC)Valve's Doug Lombardi discusses why they're making Left 4 Dead 2.
Get the full article at ign.com

Updates to America's Army 3 have been released. The updates will be applied automatically when your Steam client is restarted. The specific changes include:

America's Army 3
Removed apparent lag caused by other players entering or leaving a server
Improved start of round spawn issues
Resolved problem with training results not saving
Improved communication with Authentication server
Eliminated freezing up when moving from one training mission to another
Cleared up hesitation during training miss... [read more]

Wolfenstein (PC)The Nazis are creating a monster.
Get the full article at ign.com

Tripwire Interactive announces the “Killing Floor Grindhouse” Custom Map Making Competition with $20,000-worth of prizes. Tripwire are partnering with Nvidia and Logitech to bring you a truly spectacular mapping contest for the zombie-slaughtering co-op hit that is Killing Floor. We put the game out at a recession-friendly price, there have already been hundreds of custom [...]
Get the full article at www.killingfloorthegame.com

America's Army 3 is now available for free on Steam. AA3 includes more authentic military elements than any other military game, including training, technology, weapons and audio. When you play AA3 on Steam, you'll earn Steam Achievements, ranking up among your friends as you earn distinguished status, badges, medals and ribbons. With AA3 on Steam, you can also save your keyboard bindings to the Steam Cloud - just login to your Steam account and fire up AA3 on any PC to utilize your custom setti... [read more]