I had an itch that needed scratching... I needed to render equations on the web and I didn't want to rely on something like MathML because of poor browser coverage.
So, I created The Equationater. Type in an equation in LaTeX format and it is instantly turned into a PNG file that you can download or link to.
Here's a quick example:
Note. The Equationater is an equal opportunity renderer... it doesn't discriminate against inequalities.