Occupational Outlook Handbook (OOH) is United States Department of Labor's Bureau of Statistics publication with job outlook for many occupations.
Math occupations:
Actuaries
Mathematicians
Operations Research Analysts
Statisticians
Mathematical Association of America
American Mathematical Society
Careers in Math from Coolmath.com
Why Choose a Mathematics-Related Profession? (UC Davis Mathematics)
STEM Career Spotlight from Mathnasium.com