What's the best way to write Mathematical Equations on the Web?

Answer 1

I've been using the LaTeX plugin for the Confluence wiki to write equations on the web (well, on the intranet). It displays an image in the web browser, but you can still see the LaTeX source if you edit the page.

I don't know what you're using to host the web site, but you could maybe use a similar approach: embed the LaTeX source in the page, and render it as an image for the web browser.