Tab navigation using jQuery:

http://trevordavis.net/play/javascript-tabbed-navigation/

http://www.cssmenubuilder.com/blog/2008/09/28/jquery-tabbed-content-example/

http://frinity.blogspot.com/2008/07/tabbed-navigation-using-jquery.html

http://www.noupe.com/jquery/50-amazing-jquery-examples-part1.html

http://www.hongkiat.com/blog/50-nice-clean-css-tab-based-navigation-scripts/

http://css-tricks.com/jquery-ui-tabs-with-nextprevious/

http://www.webdesignbooth.com/25-useful-javascript-tab-navigation-scripts/

http://www.scriptygoddess.com/archives/2008/09/20/overlapping-tabbed-navigation-using-css-and-jquery/

http://www.miniajax.com/

Submit A Form Without Page Refresh using jQuery

http://nettuts.com/javascript-ajax/submit-a-form-without-page-refresh-using-jquery/

Best of FREE PSD Templates

http://hiddenpixels.com/designer-and-developer-resources/best-free-psd-templates/

JQuery Examples

http://hiddenpixels.com/designer-and-developer-resources/jquery-examples/

How to build an expandable sitemap with jQuery and CSS

http://www.scottdarby.com/2009/05/how-to-build-an-expandable-sitemap-with-jquery-and-css/

HTML Popup Dialog - Vista Graphite Style

Build unstoppable html popup dialog to grab your visitors and direct them to your sale items. To prevent the popup from becomming a annoyance, you can control how often the window is shown.

State exactly where you want the pop up to appear on the browser screen, you can choose automatically centered as you wish.

Determine the height and width of the html popup dialog, or make it full screen size - you can make it resizable if you want.

Select the features you want your Pop Up to have title bar, scrollbars. 

http://deluxepopupwindow.com/html-popup-dialog-vista-graphite.html

Chicago police department - crime report website

chicagocrime.org

Gothere Maps API

http://gothere.sg/api

new Google 411 service

http://www.google.ca/goog411/index.html#utm_campaign=en&utm_source=en-ha-na-ca-bk&utm_medium=ha&utm_term=google%20411

Create Resizing Thumbnails Using Overflow Property

http://cssglobe.com/post/1305/create-resizing-thumbnails-using-overflow-property

Some more JQuery examples

JQuery Galleria: http://devkick.com/lab/galleria/

JCarousel: http://sorgalla.com/projects/jcarousel/examples/static_controls.html

Photo Slideshow: http://www.ibm.com/developerworks/xml/library/x-ajaxslideshow/?ca=dgr-lnxw01AjaxSlid#sidebardemo

Tree node: http://bassistance.de/jquery-plugins/jquery-plugin-treeview

Google Wave - Future of Email and Instant Messenger

http://www.business2.com.au/2009/06/02/google-wave-future-of-email-and-instant-messenger/

41 of the Best MooTools Ajax Example Downloads

Cool examples of mootools library, another jQuery...?? Yeah
http://speckyboy.com/2008/04/09/41-of-the-best-mootools-ajax-example-downloads/

Simple 3D Carousel using Mootools

http://www.andrewsellick.com/75/simple-3d-carousel-using-mootools