2008-2009 Occupational Outlook Handbook Check out this site from the Bureau of Labor Statistics for career ideas and employment projections.
Science Careers from the publishers of Science
naturejobs.com is an eclectic site with information useful to scientists at all stages of their careers; from the publishers of Nature
Careers in the Biological Sciences from the American Institute of Biological Sciences (AIBS)
NIH Office of Science Education has extensive career links, including exploring various types of science careers
Becoming a Scientist From the Howard Hughes Medical Institute, prominent researchers give their opinions on what it takes to suceed in a research career