
O’Reilly is offering a free webcast relating vintage video gaming techniques to today’s web-based games.
“Back in the day, game developers were in a similar position to where web-based game developers using HTML5 Canvas are today; Graphics rendering methods were slow and they had to come up with very clever techniques to squeeze every single bit of performance from their computers. In this webcast, Andres Pagella will take attendees on a journey through history, discussing how many famous games were able to have graphics and animations that were far ahead of their time and teaching how we can apply those performance-improvement techniques in modern web-based game development projects.”
The one-hour webcast will be presented by Mario Andres Pagella on Wednesday, June 13, 2012 at 10 AM PT.
You can register at the O’Reilly webcast page.

You could also use WebGL for graphic based stuff: http://www.khronos.org/webgl/
WebGL uses the graphics card to do a lot of the graphical stuff.
And there is OpenCL for browsers in the works.
Seems like current developers are not up to date with the current technologies!