Bureau of Labor Statistics: US Department of Labor's statistics on CPI, unemployment, payroll employment and a variety of other employment statistics.
Economic Research Institute: Analysis of salary and wage survey data, executive compensation, cost of living, and geographic differentials for relocation and pay planning.
Professional Actuary Salary Survey: Entry-level through experienced actuaries are documented. Information for math and statistics majors, as well as those in actuary jobs.
SalaryClock.com: See your salary earnings in real time. Compare it with the earnings of Bill Gates, Bill Clinton, Tiger Woods, Michael Dell and others.
Wageweb: Offers handy charts detailing national averages for various professions.