jQuery navigation menus

My favorite is the Superfish jQuery menu plugin by Joel Birch. Demo – http://users.tpg.com.au/j_birch/plugins/superfish/examples/

These Mac-like Dock menus provides horizontal or vertical rollover icons that expand on rollover with optional labels.

• http://www.wizzud.com/jqDock/
• http://www.ndesign-studio.com/blog/design/css-dock-menu