Thank you. Yogrish's link is good. There are lots of examples out there including many at the three.js site here: http://mrdoob.github.com/three.js/ and other tutorial sites like this: http://www.html5rocks.com/en/features/graphics.

The #three.js IRC channel on FreeNode is also full of friendly, helpful people - works best if you have a specific question though.

http://learningwebgl.com/blog/?page_id=1217 is a good starting point.