MathBin.net is cool. It allows you to put up equations for the world to see by typing them in LaTeX and then giving them their own webpage where they’re rendered graphically. The original LaTeX and markup is preserved, however, which is very useful. It’s a good place to learn the subset of LaTeX useful in creating equations (a de facto standard way to represent complex equations in limited media, like the SDMB) so, hopefully, anyone should be able to use it.
Bump. I bookmarked it. Looks useful.
I think I can definitely make use of that.