EarJam Audio Player Get webmasterfree in your mailbox. No plug-in is necessary to watch these demos, and the file size is small. Anyone can quickly make a compelling demonstration.
Cursors move, menus and dialogs appear, all while balloons, notes and audio describe the action.
It's like watching over the shoulder of an expert while they show you how things work. Java 1.3 is needed on the authoring side only.