A robot faction is introduced into the Team Fortress 2 equation, via this amazing new trailer by Valve.
Valve's Source Filmmaker
Valve have announced the Source Filmmaker, their tool for creating animated films in a very intuitive way.
Meet the Medic - Behind the Scenes
See outtakes and learn about Valve's creative process in this behind the scenes article for their Meet the Medic short.
Portal 2: Lab Rat - Part One
Read part one of Portal 2: Lab Rat, a comic created by Valve to bridge the old and new game in the series.