www.rileyguide.com/diverse.html--from The Riley Guide. Lists resources for women, minorities, and other audiences.
For college students and new grads:
http://www.jobweb.com/--offers career and job-search advice for new college graduates; a service provided by the National Association of Colleges and Employers.
http://www.collegegrad.com/--provides job search service for college students and recent grads.
http://www.aftercollege.com/--connects college students, alumni and employers through customized career networks at colleges and professional organizations across the country.
For ages 55+:
http://www.nationalable.org/--provides people ages 55+ with basic skills in reading, writing and mathematics, English as a Second Language, as well as basic computer skills, workplace behaviors and skills, Spanish GED and vocational ESL, and job-readiness workshops (e.g. resume writing, interviewing skills, job search techniques)
http://www.abcnews.go.com--Tory Johnson's Work-From-Home Tips