General Educational Sites

Argonne National Laboratory: Ask-a-scientist website
Basic genetics tutorial
Cancer explanations
Frank Potter's Science Gems on Biology: resources sorted by Category, Subcategory, and Grade Level
Genetics learning center, University of Utah: "Helping people understand how genetics affects their lives and society"
Life Science Dictionary
Malcolm Campbell's homepage: educational resources at the undergraduate level
National Science Foundation: biology news site
NCBI science primer: (bioinformatics, microarrays, pharmacogenomics)
Radboud University: Nijmegen virtual biology classroom
The Science Network: collection of general interest science videos featuring prominent scientists
TeachOne biology list of useful links
"The Why Files" for cell biology
Tree of Life Project