Modernizr is a small and simple JavaScript library that helps you take advantage of emerging web technologies (CSS3, HTML 5) while still maintaining a fine level of control over older browsers that may not yet support these new technologies.

This is why we can't have nice things.

"When I was preparing my short story The Variant for the Kindle, I found a lot of confusing and contradictory information about how to do the formatting — much of it on the official help site. So I’m writing up this quick guide aimed at somebody with roughly my level of coding or design experience."

"I looked at your code. Here is the problem. You are not using frames or CSS to mimic frames. This is not your fault. You were taught not to use frames in your class."

Hard to say if these will be worthwhile, but interesting nonetheless.

"That's right, instead of relying on the frustrating <blink> tag - which is non-standard and not compatible with all web browsers - blinking text can now be achieved in a fully standards-compliant manner."

Converts Markdown to XHTML, and back again, as an OS X service.

Useful for Greasemonkeying

Sakai is using this, and it's pretty wizzy. Wish Safari was supported.