How much do you want to know about Bezier curves?

I've spent the last few weeks redoing my primer on Bezier curves from the ground up, adding sections for topics that aren't in the original article, and coding all the examples back up from scratch, resulting in a shiny new, open source, hosted-on-github, easy to improve and extend article. If you've always wanted to know how Bezier curves work, or you need to understand them well enough to program them yourself, you may want to check this out. Did I mention almost all the graphics are interactive, without using flash? I'm sure I did, mm, yes.