Epic Games has recently made several of their GDC tech session videos available for online streaming:

[url="https://fortyseven-dot-yamm-track.appspot.com/Redirect?ukey=1t4f7FesHlPiVeuspNu1BeF_yIC9ExU2KtMq6Er3eG1g-5&key=YAMMID-74705660&link=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DA0BfZoFZyBs"]Exploring the Technology that Drives