SoSLUG's Alan Campion, has done a wonderful job of teaching us all about things we can do using the new HTML5 canvas tag. This is designed as a supplementary article to his efforts, to show some things you can do with the HTML5 canvas tag to save/serialize it's data for use elsewhere.

Canvas element - circles and ellipses

Several new elements have been introduced with the release of hTML5. Perhaps the most significant, is the canvas element which now makes it possible to draw, add text and create animations using Javascript. It is also possible to manipulate images.