Mozilla and Chrome's VR teams recently presented at the "Browser-Based Virtual Reality in HTML5" SFHTML5 meetup.

https://www.youtube.com/playlist?list=PLUj8-Hhrb-a0Z3f70ygX5...

Tony Parisi's slides: http://www.slideshare.net/auradeluxe/an-introduction-to-web-...

Brandon Jones's slides: https://docs.google.com/presentation/d/1e_Gto702fnYF1BhVllSW...