| Title | Descripion |
| MIT Mathlets | Large library of applets, mostly focused on post-secondary courses, but with a lot of function graphing and geometry. |
| Stapplet.com | Lots of statistics applets. |
| Numbers as Sets | Numbers in set notation and what they look like. Need to download software to use. |
| Integral-domain | Algebra, Geometry, and Calculus applets arranged by subject. |
| Title | Description |
| Delta-Epsilon Diagram | An Applet that provides a graphical representation for the epsilon-delta definition of a limit. This is an application of graph theory towards calculus. |
| Venn Diagram | Venn diagram applet that illustrates intersections, compliments, and unions. This has direct applications to probability and statistics. |
| Set Operations | Another applet showing set notation, compliments, unions, and different set operations in a non-graphical way. |
| Title | Description |
| Math's Fundamental Flaw | Great video that talks about the history and foundation of set theory and the impact it had on math. Kinda long, but it’s got some really good bits. |
| How ISPs Violate the Laws of Mathematics | Another video. This one is a humorous explanation of some of the axioms of set theory. |
| XKCD on Set Theory | XKCD comic about the axiom of choice |