http://www.eco.org/
Founded in 1972, The Environmental Careers Organization (ECO) is a national, non-profit organization that develops professionals for the environmental field through paid environmental internships that provide highly professional, on-the-job learning experiences for bachelor's, master's, and doctoral students and recent graduates.

http://greenjobs.workforce3one.org/

Thanks to funding from the American Recovery and Reinvestment Act of 2009, IDES now offers a new online career resource tool - Find Your Green Job. It provides a wealth of information on green industries, both in Illinois and nationwide.