Here are some resources for "green" job opportunities:
Eco Employ - http://www.ecoemploy.com/
Environmental Jobs by State - http://www.ejobs.org/states/
Environmental Protection Agency Opportunities for Grads - http://www.epa.gov/careers/
Specialized Environmental Employment Listings - http://www.ecoemploy.com/slistb.html/
Green Jobs Network - http://www.greenjobs.net/
Green Collar Blog - http://www.greencollarblog.org/