|MIT Biology Hypertextbook
A website which contains the basic molecular biology that is the basis of MIT's core Biology course, "Introductory Biology".
http://web.mit.edu/esgbio/www/ More Info
Tree of Life Web Project
Provides links and information on the diversity of organisms on Earth and their evolutionary history/phylogeny. Includes information on the characteristics of these organisms as well.
http://tolweb.org/tree/phylogeny.html More Info