Discrete Math
Counting Problems
Early college level, includes tutorials for Permutations, Combinations and the Binomial Theorem .
Discrete Math Tutorials and Activities
Algorithms, Game Theory, Structures and problems using Discrete Math.
Discrete Mathematics Introduction
What is Discrete Math? Why learn Discrete Math? A great introduction to Discrete Mathematics.
Everything Finite
Excellent tutorials with interactive components to guide you through the topics in finite mathematics.
Election Theory
A practical approach to understanding a branch of Discrete Mathematics.
Finite Mathematics
Suitable and comprehensive tutorials for late highschool and early college level math. Includes: slopes of lines, compound interest and annuities, row operations, pivoting, Gauss/Jordan Method, graphing inequalities etc.
Lattice Theory
From the 'Geometry Junkyard', a tutorial explaining Lattice Theory and the Geometry of Numbers. Explanations and graphics are very clear.