Build enough websites and eventually you accumulate a list of the best places to find things, the best versions of common scripting activities and so forth.
(These usually appear first on Twitter.)
Out of the ones I tried, I liked this CSS inliner the best.
Maintained by Facebook Design, never again will you have to hunt around the corners of the internet for Android devices.
For posterity’s sake, a good place to get a loading animation.
A handy reference guide.
This is the best typing jQuery plugin I’ve come across.
“A list of everything that could go in the <head> of your document” So you know.