Employment for those who have already received their doctorate is the thrust of this category.
Regular Websites
This site contains a database of employment opportunities for post-doctoral jobseekers. It allows employers to advertise job openings and seekers to search the database. - Find a PostDoc
http://www.findapostdoc.com/
Science career information, job listings for science PhDs, and information on graduate school in the sciences. - PhDs.org
http://www.phds.org/
Lists hundreds of postdoctoral positions, research associates, and other jobs that require a doctoral degree as well as postdoctoral scholarships and fellowships. - Postdoc Jobs.com
http://www.postdocjobs.com/