Learning jQuery

Quite a few jQuery tutorials have been posted around the web recently. It's always great to see more people not only learning jQuery, but also teaching it to others. Here are just a few that I think could be helpful to readers of Learning jQuery:

• jQuery Crash Course. Nathan Smith shows he scripted an airplane seat picker script with jQuery. Beautifully designed with nice, clean code.
• Understanding the "Chain". Dan G. Switzer discusses how he went from an incorrect assumption to a solid understanding.
• What is JSONP?. Remy Sharp describes the JSONP method of script-tag injection and shows how it can be done with jQuery.
• Creating A Sliding Image Puzzle Plug-In. Ben Nadel demonstrates how he built a really cool sliding-image puzzle.

Any others out there that you have found particularly useful? Let us know in the comments.