CareerRookie - (college grad) entry-level, internships, and part-time (search results also integrated into BodJobs) - affiliated with CareerBuilder

The Wall Street Journal career site - executive careers

FlipDog

Hound.com - very good search engine that tracks down jobs from employer web pages.

Indeed.com - searches many other sites, many jobs

Juju.com - searches many other sites, many jobs

MonsterCollege - division of Monster for (college grad) entry-level jobs and internships

SimplyHired.com - searches other sites