NASA: Global Change Directory A collection of links to internet resources on global change, earth science, and environmental data and information. http://gcmd.gsfc.nasa.gov/Aboutus/sitemap.html
World Wide Web Virtual Library: Paleoclimatology and Paleoceanography Links to websites about the climate, vegetation, and oceanography of the Quaternary and other past eras. http://www.datasync.com/~farrar/www_vl_paleoclim.html