WebFX is a VRML (virtual reality modeling language) browser plug-in that adds three-dimensional viewing capability. You can fly, walk, and step through virtual 3-D worlds right from your browser (anything from a virtual tour of a house, to a virtual test drive of a car). The plug-in and plenty of cool sites to try it out are available from its maker at http://www.cortona3d.com/cortona3dviewer