LiveGraphics3D is a Java 1.1 applet to display and (interactively) rotate Mathematica's Graphics3D objects in HTML pages. Additionally LiveGraphics3D is able to show animations, calculate stereo graphics, integrate hyperlinks and display bitmap backgrounds.
The applet comes as a Java 1.1 archive called "live.jar". (MacOS users should download "live.hqx" and extract "live.jar" on their local file system.)