Not sure if it has much sense in the era of Twitter (everyone who’s interested can easily find links there), but let’s try. Some of GDC2k11 proceedings:
Crash Analysis and Forensic Debugging, Elan Ruskin (Valve).
Normal Offset Shadows, Daniel Holbert (High Moon Studios). Thanks, Ignacio!
Industry Lessons Learned and Applying Them to the Road, Cliff Bleszinski (Epic Games).
Approximating Translucency for a Fast, Cheap and Convincing Subsurface Scattering Look, Colin Barr?Š-Brisebois+Marc Bouchard (EA Montreal). Thanks, Guille!
HTML5 and other Modern Browser Game Tech, Vincent Scheib (Google)
Mega Meshes - Modelling, Rendering and Lighting a World Made of 100 Billion Polygons, Ben Sugden+Michal Iwanicki (Lionhead Studios). Videos here.
Autodesk GDC presentations (found by KriS).
Creating Satisfying Combat Experiences, Joel Goodsell (Insomniac Games).
Numerical Integration, Jim Van Verth (Insomniac Games). Thanks, Jonathan!
Intel @ GDC 2011 (found by Guille).
HTML5 and other Modern Browser Game Tech, Vincent Scheib (Google).
Ending the Culture War - Creating a Better Pipeline by Uniting Tech Art and Engineering, Rob Galanakis (Bioware Austin) [also, the winner of The Longest Talk Title award]. Thanks, KriS!
Practical Occlusion Culling for PS3, Will Vale (Second Intention Limited). Found by KriS.
Large-scale Messaging at IMVU, Jon Watte (IMVU Inc).
The Identity Bubble, Matthias Worch (LucasArts).
Prototype Through Production: Pro Guitar in ROCK BAND 3, Jason Booth & Sylvain Dubrofsky (Harmonix Music Systems). Link from Sylvain himself, thanks!
The Game of Platform Power, Daniel Cook. Found by Maciekp.
AMD added their GDC presentations to publications page.
Technical Artist Bootcamp. Both links found by Steve Hill, thanks!
Free stuff is already in GDC vault.
Anti-Aliasing From a Different Perspective (Directionally Localized Anti-Aliasing) - Dmitry “AND” Andreev (LucasArts). Found by rotoglup.