Forge - Static web hosting made simple
Captioned - Say, show, share. Create a 60 second captioned video.
Leap Motion - Reach into the future of virtual and augmented reality with the most advanced hand tracking on Earth, used by over 300,000 developers worldwide.
Hubs by Mozilla - A WebVR experiment from Mozilla Mixed Reality
A-Frame - Building blocks for the virtual reality web
Interlude - "New world of storytelling" - with interactive videos