This is only a sampling of the sites which may be helpful. You can find other listings that are relevant to your interests by doing a web search.
- American Geophysical Union (AGU) page of careers links
- American Geological Institute (AGI) Geoscience Workforce Program; AGI Geoscience Careers information; AGI Geoscience Currents - status of the geoscience workforce
- Geological Society of America careers information
- The Environmental Careers Organization
- The Association For Women Geoscientists
- Newsgroups which can be searched for combinations of key words like "jobs" plus "environmental" or "geology"
- Carleton College Career Center page for job searches