Palomar Community College District
Palomar College: Mendels' Genetics
This site from Palomar College provides a good background on exactly what Mendel did. Vocabulary links throughout make this a very good introduction article for genetics.
City University of New York
Brooklyn College: Medelian Genetics
This set of seven activities will proved a thorough review of Mendel's work. The interactive experiments are easy to follow and drive home the concepts.
CK-12 Foundation
Ck 12: Biology: Mendel's Second Set of Experiments
[Free Registration/Login may be required to access all resource tools.] Covers Mendel's second set of experiments and his conclusions.