Cheat Sheets for the YUI Utilities » Yahoo! User Interface Blog
If you use the Yahoo JavaScript libraries a lot, these cheat sheets (inspired by those of fellow Brightonian, Dave Childs) should come in very handy.
jQuery 1.2 Cheat Sheet :: www.gscottolson.com/weblog/
A handy cheat sheet of jQuery methods to print out and keep on hand.
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jQuery Enlightenment | by Cody Lindley | 1st Edition | based on jQuery 1.3.2
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jQuery UI: Widgets, Components, and Interactions
From the people who brought you jQuery comes a set of widgets built using jQuery complete with documentation and tutorials.