These subject guides have links to databases relevant to your subject area.
College of Engineering, 1947 N 12th St, Second Floor
215-204-7828 SEL@temple.edu
The Occupational Outlook Handbook from the United States Bureau of Labor Statistics is a good source of information on careers.
Occupational Outlook Handbook: http://www.bls.gov/ooh/home.htm
Most useful search in Google is using careers in [your subject]