Web sites

SIAM-AMS Nonacademic Careers in Mathematical Sciences 
Official site for American Mathematical Society-informational site
http://www.ams.org 

Jobs in Mathematics 
Career planning and development site for mathematics majors; info on jobs and graduate programs
http://www.phds.org/ 

Internship Sites: Internships- Nationwide Sites
Search for internships by subject/location
http://www.internships.com

Actuarial Links
General career information for actuaries 
http://www.triskele.com/index.html

What is an Actuary? 
Career information for actuaries
http://www.math.purdue.edu/actuary/What.html  

Association for Computing Machinery (ACM)
Job searches, skills assessments, internship search options
http://www.acm.org/member_services/career/careerline.html  

Computing Research Association 
Jobs in Computing Research
http://cra.org