Net-tuts has a simple to following WebGL essentials tutorial online. A great place to start learning.
If you could not make it to the WebGL Camp Europe this year, don't despair. All the videos and slide decks are now online. There's a ton of great stuff and well worth the time to watch the videos.
The agenda of the WebGL Camp Europe (July 3-4, 2012) is now available. There are many awesome speakers and topics. Registration is now open.
There will be five courses offered at Siggraph 2012 that relate to Khronos Technologies. Starting on August 5th followed by one course each day, there will be "Introduction to Modern OpenGL", "Virtual Texturing in Software and Hardware", "Beyond Programmable Shading", "GPU Shaders for OpenGL 4.x" and finally on August 9th "Graphics Programming for the Web." See all Khronos related events at Siggraph 2012 on the Khronos Group Siggraph event page.
Sketchfab went live recently with new technology making it easy to publish interactive 3D content online. The free service does not require any third-party application installed on either the client side or the server. All Sketchfab needs is for the end-user to be running a WebGL compatible browser.
Everything you need to know about developing hardware-accelerated 3D graphics with WebGL! As the newest technology for creating 3D graphics on the web, in both games, applications, and on regular websites, WebGL gives web developers the capability to produce eye-popping graphics. This book teaches you how to use WebGL to create stunning cross-platform apps. The book features several detailed examples that show you how to develop 3D graphics with WebGL, including explanations of code snippets that help you understand the why behind the how.
After five WebGL Camps in the USA, WebGL Camp is now coming to Europe being hosted by the University of Applied Sciences and Arts Northwestern Switzerland. WebGL Camp Europe is now looking for speakers. A limited number (1-2) of non-European based presentations via Skype will be possible too. WebGL Camp Europe takes place July 3rd, 2012 in Muttenz/Basel, Switzerland. On July 4th there will be optional WebGL workshops/tutorials. More information at: http://www.shader.org/webglcamp
The Khronos Group has posted video presentations from Barcelona. Speaking in Barcelona were Neil Trevett, Khronos Group President, Erik Noreke, Kristof Beets from Imagination Technology, Enrica Filippi from ST-Ericsson and Sri Kannan Iyer from ARM. A complete presentation list, photos and video list is also available from the Khronos event page.