While the method still works, currently the beamer package to latex is recommended in its place. Google beamer for tutorials.
Acroread makes a reasonable slide show application. There are tools now for turing Latex files into a "slide show" pdf file. This application was a subject for a recent talk (May 2000). And there is a slide show of talk which can be found from this page. Basically one can use the commands pdflatex and ppower4 to make the slideshow. These two commands have been combined into one "latex2slideshow" command. One must convert the included graphics from Postscript to PDF before running latex2slideshow, the ghostscript package includes ps2pdf which does this and will distill.
PDF files are my current favorite way of putting mathematics on the web. Adobe gives away acroread for almost every platform and there are other free pdf readers too (xpdf ghostscript).
Steven Bellenot, 19 May 2000