The resurgence of the use of JavaScript has gone hand in hand with the rise of robust, sophisticated JavaScript libraries like Mootools, JQuery, Dojo and YUI. To get an introduction to these libraries, take a look at the Enabling Web 2.0: Dojo, MooTools, YUI, and Spry page, where you can watch videos and get some insight on how to use them.
To get a sense of whether developers are using these libraries, and the most popular one, I defaulted to the extensive State of the Web 2008 survey results. To the question “Which JavaScript libraries and frameworks do you use?” the results were as follows :

JQuery dominates among these respondents, with 63% of developers answering that they use it. I am currently coding most of my experiments using Mootools as year after year I see it gaining in popularity. It is undeniable that the JQuery community is big and strong.
Let me know if you want me to take a look at JQery, leave a comment and I'll post a few experiments.

Sesli Sohbet said...
Great post thank you keep it up.
randygland said...
can javascript rotate stuff?
Paul+Ortchanian said...
I'll blog about that soon, in theory no but there are CSS proposals to the w3c and some browsers already implement it.
Dan G. Switzer, II said...
Using canvas (and VML in IE) you can rotate "stuff". You can also use something like "ie-canvas" to allow you to use canvas in IE (which translates the canvas code to VML.)