Design Reviver Answers

Downloading plugins and following tutorials will only take you so far - what if you need something that simply hasn't been done before? You would have to develop it yourself, you would have to learn jQuery from the begining and start with the basics.

In the Woods offers a video series (15 videos) that will teach you PRECISELY how to use the jQuery library in your own projects: jQuery for absolute beginners.

Spyre Studios has written an article about how to how to get started with jQuery, and actually writing your first script: Simple Guide: How To Get Started With jQuery (Part One)...

... As has Six Revisions: Getting Started with jQuery...

... There is also Learning jQuery, a multi-author blog offering jQuery tutorials and demos. They have tutorials for all skill levels, and each entry is categorized by level of difficulty...

... And finally jQuery for Designers is another cool resource for learning jQuery.

Benjamin is right! ;)
You can find some cool tutorials at http://jquery.com

Tutorials and experiementing.

Easiest way is to learn by doing, find functionality that you want, and figure out by using logic and research how to implement.

The best and free learning way that I used is this serise.

(Pls vote me if you found this link use full)

You can try to use Glimmer: A jQuery Interactive Design Tool and download Glimmer & its example files for free. It generates jQuery scripts for common interactive scenarios. In this point you can identify the event controls. Other good resources could be: www.learningjquery.com

I would say, the best way to learn jQuery is by just using it!
A great resource for tutorials is Nettuts+ for example!