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/