AmphibiaTree http://amphibiatree.org/
EMBL Nucleotide Sequence Database http://www.ebi.ac.uk/embl/index.html
European Molecular Biology Laboratory http://www.embl.org/
The National Academies Evolution Resources http://nationalacademies.org/evolution/
National Center for Biotechnology Information http://www.ncbi.nlm.nih.gov/
Opportunistic Collection of Tissue in the Field http://www.mip.berkeley.edu/mvz/collections/opportunistic_collection_of_tissue.pdf
Ribosomal Database Project http://rdp.cme.msu.edu/index.jsp
The Society for the Study of Evolution http://www.evolutionsociety.org/
Tree of Life Web Project http://tolweb.org/tree/
UCMP Evolution Wing http://www.ucmp.berkeley.edu/history/evolution.html
UCMP Evolution Website for Teachers http://evolution.berkeley.edu/