TinyBox2 is the successor of the previously published resource TinyBox which is a standalone JavaScript modal windows library.
The library is lightweight (5kb) and supports images, iframes, HTML and Ajax requests natively.
Website:http://www.scriptiny.com/2011/03/javascript-modal-windows/
Page Speed, the popular Firebug/Chrome add-on -by Google- for evaluating the performance of web pages now gets an online version.
It offers a very similar functionality with the Firebug version, analyzes the page performance and comes with suggestions that are categorized in priorities to improve it.
This free service also has a new feature: "suggestions for the mobile version of a web page" which are tuned for the unique characteristics of mobile devices.
Page Speed Online
Website: http://pagespeed.googlelabs.com/