• "Plate Tectonics" by Ann Weil - http://www.umcp.berkeley.edu/geology/tectonics.html
• Center for Astrophysical Research in Antarctica Website - http://quest.arc.nasa.gov/antarctica/
• "Plate Tectonics" by Pamela J. W. Gore - http://www.dc.peachnet.edu/~pgore/geology/geo101/plateb.htm
• "The Penguin Page" by Kevin C, Welch - http://www.vni.net/~kwelch/penguins/
• "Charles Darwin" - http://www.windows.umich.edu/people/enlightenment/darwin.html

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