Organization
of Biological Field Stations - "an association of
more than 200 field stations and professionals concerned
with field facilities for biological research and education,
primarily in North America and Central America. This site
provides links to OBFS member stations. Individual stations
include descriptions of courses offered, summer internships,
teacher education, etc."
Additional Resources
Big Book - Addresses
for businesses nationwide.
Global Zoo
Directory (caution: the North America file is very, very
large).