http://stats.bls.gov/search/ooh.asp?ct=OOH - Occupational Outlook Handbook The OOH is compiled by the United States Department of Labor.
http://online.onetcenter.org/ - find details on occupations through skill requirements or key words
http://www.review.com/ - This is the web site for The Princeton Review, a student information clearinghouse. It has a career search section. You must register with the web site to use its career database, but there is no charge for registration. Has an interesting career quiz, the results of which provide you with links to detailed descriptions of several careers.
http://www.nycareerzone.org/text/index.jsp - Put together by the New York state department of labor. Categorizes occupations into six clusters. Has pretty comprehensive list of careers, and you can use the links to find some good information, especially in the areas of tasks, skills, knowledge, and education. Keep in mind that some of the info (e.g. salary) is specific to New York state, so it may not be entirely representative of other states.
http://www.acinet.org/acinet/ - A comprehensive source of occupational information, with many links. It even has video presentations for 200 different careers.
http://www.qualityinfo.org/olmisj/OlmisZine - The Oregon Labor Market Information System - a detailed site with information about the labor market in Oregon. The career information on this site is very "statistic" driven and less narrative, but you still might find something useful. Affiliated with the acinet.org site.
http://oregonstate.edu/career/students/tools.php#exploring
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This is a major match web site that can be found on the Career
Services web page. It will provide you with career information for jobs
that have a relationship to your specific major. See how and if the major
you're considering has a relationship to the career you're researching
http://www.explore.cornell.edu/newcareerzone/assessment/ - Find more careers that match your skills and interests
http://oregonstate.edu/career - OSU Career Services web page, see what employers will be on campus
http://www.careerbuilder.com/JobSeeker/Index.htm - Search for actual job listings
