ActionBars - Create customizable, fully interactive web site navigation bars with up to 5 states. No plug-ins and compatible with Netscape and IE for Win, Mac and Unix. [Commercial]
Advanced Tree Explorer - Feature packed and highly customisable, add menu navigation to web sites, help systems, documentation.
Apycom Java Menu Applets - Configurable java applets for drop down menus, bars, and buttons. Some with sources.
awtX - A library of useful GUI controls written using AWT: treetable (tree+grid), jtree (supports XML), toolbar, menubar, tabbar, calendar, slider, graph. Controls are implemented as stand alone applets for extending web pages. [Commercial, freeware and open source]
The Buttonbar Applet - An applet that allows you to easily create interactive, graphical menubars. Simply set up a few parameters to create your own, individual menubar. You can use your own fonts, font colors, background images and sounds. The applet comes with an English and a German Manual. [Shareware]
Byte Sized Computing - Includes a customisable tree view control for use in Web pages, similar to that used by Windows File Manager or Explorer.
1 Cool Button Tool - Button maker creates interactive java applets and Flash navigation, menus and animations all in a WYSIWYG editor. [Shareware, Online demo]
Cool Focus - Java Web Menus and Applets - Professional Java-based menu systems, text and image display applets for web and intranet sites. Freeware and shareware.
Happy Menus - Menu applets and online tool for building own stylish site navigation menu.
Imint.com - Collection of menu and navigation applets with support area.
JSiteMap - A code generator of a Javascript tree that can be used either as site map or as tree menu for site navigation. It's written in Java. [Open source, GPL]
MicroTicker NewsMaker - A smooth-scrolling news ticker that reads items and links from a file. Comes with free software tool to make message-and-link file.
Navigation applet - Java applet that presents a tree of links for site navigation. [Freeware]
RMenu and RTree - Java applets to create navigation menus for your web site: horizontal , vertical, dropdown and tree. Designer also available to create the menu without HTML knowledge.
Surftree - A Java applet that adds an expandable tree to a web page based on a CSV file. [Freeware]
Tools Soft - Web site navigation applets and builders. [Commercial]
Web Media Applets - Navigation menu applets and other useful applets that allow to display information in a more attractive way than classic web pages.