Want to see all the uses of WWJava that people are trying out? Then you want to check out the NASA WorldWind Java Demo Page that lists Web Start examples and standalone applications.
There are your standard demo's there.. but there are some really nice demonstrations that that can really up the "Wow!" factor. Something you just can't get with an embedded Google Map (Sorry Google lovers). I'll just link to a couple of my favorites.. you can check the page for all the currently listed items.
Cascade Volcanoes Tour Applet
This page shows a WorldWind applet controlled from HTML hyperlinks in the page body text.
Air Search And Rescue
This application helps search and rescue planners determine the best places to search after a plane goes missing.
Using last known positions from ground radar and other sources, planners are able to reconstruct an aircraft path and study it's position relative to the ground from any view point including that of the pilote.
JSatTrack
JSatTrack is a Satellite tracking program written in Java. It allows you to predict the position of any satellite in real time or in the past or future. It uses advanced SGP4/SDP4 algorithms developed by NASA/NORAD to propagate the satellite orbits.
blueMarine
BlueMarine is an open source application for the digital photo workflow. It uses WorldWind to display the positions of georeferenced images over a 3D map.
Flat World Earthquakes
This example shows the latest earthquakes over a flat world projection. It allows you to see the whole globe at once while retaining the capability to zoom onto the surface and still experience 3D terrain.