ui

Ui Kit | PremiumPsds
Mobile Responsive Design Testing¬es=
Feng-GUI – Attention Analysis for Websites and Advertisements

Interesting, inexpensive alternative to eye-tracking studies.
jQuery UI – Draggable Demos & Documentation

I’m going to use this on a project.
Any+Time™ DatePicker/TimePicker AJAX Calendar Widget – AJAX, JSON and XML Consulting and Training by Andrew M. Andrews III (SM)

Really nifty date picker.
3-tap Middleclick on OSX for MacBook & Magic Mouse

Just what I needed to make Firefox navigation easier. 🙂
iPlotz: wireframing, mockups and prototyping for websites and applications

I’ve been toying with the idea of computer-based wireframing and want to give iPlotz a try.
How To Use Icons To Support Content In Web Design « Smashing Magazine

Excellent examples of icons being used well.
iWebKit – Make a quality iPhone Website or Webapp

I’ve yet to do any iPhone-specific development, but this looks like an easy way to get started.
Show hide div with cookie for remembering position — possible solution – jQuery (English) | Google Groups

A script that might be helpful for showing/hiding sidebar widgets.