Latex in HTML

Until 2008 or so texts like $\zeta(2) = \int_0^1 \int_0^1 \frac{dx dy}{1-x y} = \frac{\pi^2}{6}$ where produced by inserting image files in the HTML. Thanks to Ajax technology we can simply type Latex in HTML. Amazing as current technology seemed impossible only a decade ago. - What I still can't do - in a flexible, simple, manner is producing graphs, dwawings and the likes.

I wanted to write about graph theory as I am studying Graphs-2 of MST365, but even drawing one nice and clear graphs image is close to impossible. Even in Mathematica it takes tons of code. - The topic I wanted to discuss is really, really interesting. About some deep connection between graph theory and number theory via unlabelled trees and integer-partitions. Well, maybe another time.