Tom Auffhammer, 17 (right) scoops ice cream in Syracuse, N.Y. Teens continue to face stiff competition for summer jobs, but a downward trend in summer hiring for teens actually predates the recession. Michelle Gabel/The Post-Standard/Landov hide caption

itoggle caption Michelle Gabel/The Post-Standard/Landov

Employers have been asking for prospective employees' Facebook username and passwords to do some extra research on whom they may be hiring. Leon Neal/AFP/Getty Images hide caption

itoggle caption Leon Neal/AFP/Getty Images