http://cgeewebdb.towson.edu/cger/grad/ Towson University offers MS and Graduate Certificate Programs in a variety of fields. Look at programs in both Biology and Environmental Science if you want to remain in the environmental field.

http://www.animalbehavior.org/ The Animal Behavior Society site includes a guide to graduate programs in animal behavior (under resources), the newsletter (includes adverts. for jobs and graduate fellowships), links to university biology departments.

http://www.nmnh.si.edu/BIRDNET/ The Ornithological Council. Lots of bird-oriented job opportunities and graduate fellowships listed in the Ornithological Newsletter.

http://conbio.net/scb/ Society for Conservation Biology. The best source to begin a search for conservation-related employment or information on programs in conservation biology. If you explore the site you will discover that it also allows you to locate potential research advisors.

http://ncseonline.org/DEP/ This website, maintained by the National Council for Science and the Environment, provides an extensive and searchable listing of environmental programs.

http://www.gradschools.com Looks to be what it says it is.