cdnjs/cdnjs — pull request #259 by sergiokas (2012-05-04 03:54:44+00:00)
Title: Adding jquery.form.js plugin

Adding excellent jquery.form.js plugin. From the author: "The jQuery Form Plugin allows you to easily and unobtrusively upgrade HTML forms to use AJAX." It's specially handy when submitting file uploads through an ajax call.

I think it's widely used. It's been around for quite a while (probably older than Github itself), and it's still under active development/maintaining (last commit was less than a month ago).

Documentation also rocks: http://jquery.malsup.com/form/

(Disclaimer: I didn't write the plugin code, I just use it profusely)