Didn't make it to this year's Game Developers Conference? If you were particularly excited about attending some of Valve's various sessions, you can virtually attend through the power of the PDF. The house of Half-Life, Portal and Counter-Strike has released the slides from its four GDC presentations which cover all aspects of The Orange Box. The presentations "Integrating Narrative and Design: A Portal Post-Mortem" and "Stylisation With a Purpose: The Illustrative World of Team Fortress 2" may be the most layman friendly, giving regular folk a look beyond The Orange Box's developer commentary. All four are worth a peek at the very least.
Valve Publications [Valve via GameSetWatch]