Graphing Resources

3D Calculus Plotter produced the surface at left (requires Java)

Desmos: explore 2D plotting

Programming Resources

Sage: a free, open source, Python based mathematics software

MiKTeX: free software for typesetting mathematics

To get started drawing tikz pictures in LaTeX documents, like the, check out my favorite Tikz reference.

Websites you might enjoy

Lior Patcher's blog

XKCD, a webcomic

More to come!