Useful time waster is a web application that claims to emulate different browsers from the original line mode browser from 1991, through NCSA Mosaic, beta Netscape, Netscape 1.0, IE 2.0, and HotJava. I’m pleased to report that my page is quite readable and almost looks like it was designed for all those browsers—if you ignore the fact that all my navigation links show up at the bottom of the page.