http://www.tri-beta.org/: The national Tri-Beta website
biology.missouristate.edu/Careers/Careerlinks.htm: A list of career websites for biology majors
http://www.nsf.gov/: The National Science Foundation. They offer summer research internships for undergraduates interested in applying. This is a very good way to spend a summer and gain experience in biology research.
http://www.missouristate.edu/: Missouri State University homepage
http://organizations.missouristate.edu/premed/Default.htm: Missouri State Pre-Med Society
http://organizations.missouristate.edu/sierraclub/: Missouri State Sierra Club