• Academic Search Premier (EBSCOhost)
  
• AGRICOLA (EBSCOhost)
  
• American Chemical Society Journals Online
• BioOne
• GreenFILE (EBSCOhost)
• ProQuest
  

• American Environmental Leaders (REF GE 55 .B43 2008)
  
• Ecology Basics (REF QH 540.4 .E39 2004)
  
• Environmental Encyclopedia (REF GE 10 .E38 2003)
  
• The Environmental Resource Handbook (REF GE 20 .E586 2010/11)
  
• The Wiley Encyclopedia of Energy and the Environment (REF TJ163.235 .W55 1997)
  

• ARKive
  
• Highwire Press
• Institute of Global Environment and Society - IGES
  
• ISIHighlyCited.com
  
• The IUCN Red List of Threatened Species
  
• Science.gov
  
• Nature Online
  
• Nature Serve
  
• Tree of Life
  
• U.S. Geological Survey

Note: These sites have been evaluated by library staff. Please consult with your professor or a librarian to evaluate any Internet resource found using a search engine such as Yahoo! or Google.