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
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.
New York University
Population Size and Genetic Drift: Lecture Notes
This is a college level lecture on genetic drift, complete with mathmatic formulae, includes special links.
Khan Academy
Khan Academy: Genetic Drift
Find out how evolution happens due to chance events. Explore the bottleneck effect and founder effect.
BiologyWise
Biology Wise: Genetic Drift vs. Gene Flow vs. Natural Selection
Explains what genetic drift, gene flow, and natural selection are, and compares their differences, two at a time.