How can I render Math equations on the web? I am already familiar with LaTeX\'s Math mode.
I've used ASCIIMathML for this in the past. It's essentially a JavaScript library and can use a plugin in IE to optimize performance, but also works without it in IE & Firefox/Mozilla (although a bit slower). The syntax supports a subset of LaTeX, but the differences cause some confusion, so it may confuse your users, depending on where they are coming from.
Here are some links so you can check it out yourself:
Not perfect and doesn't work in all browsers (Safari, etc) but it's something that works today at least, albeit in a somewhat selective subset of the web.