Start by going to Naviance and clicking on the Career tab, but if you want to branch out, here are some other goods sites.
CareerNet - Career Descriptions
Occupational Outlook Handbook - Search for or look up information on careers
Employment Projections Home Page - What types of jobs are in demand and where will they be?
NJ Next Stop.org - Online Career Planning Resource NEW!
Career Education Profiles - Information about Trade, vocational and Technical Schools