University of Arizona
The Biology Project: Genetic Drift: An Explanation
This explanation of genetic drift is straightforward and easy to understand. Illustrations are provided to help visual learners
California State University
Csu Chico: Population Genetics
This is a group of Mendelian Genetics exercises that are designed to show the evolution of a trait within a population. The site covers instruction in calculating genotypic and allelic frequencies, determining dominance, the...
University of Arizona
University of Arizona: Genetic Drift Simulation
This site from the University of Arizona runs a two-step simulation of Genetic Drift. There are teacher's notes included. A great site to aid in understanding Genetic Drift.
Other
Lawrence Livermore National Lab: Probabilities of Traits
This site explains how to determine the chances of inheriting certain traits from our parents. It gives mathematical examples and exercises.