Two online job sites will battle it out during next year's Super Bowl telecast, as Monster.com returns to the playing field after being absent for four years, taking on CareerBuilder.com, which plans to air two ads, the Wall Street Journal reported today (Monday). Ted Gilvar, Monster's chief global marketing officer, told the Journal that Monster would be using its commercial time on the Bowl telecast to promote its redesigned website. In its report about the rivalry between the two job sites, the Journal observed "The presence of both companies in the Super Bowl comes at a critical time in the online-recruiting business. The nation's unemployment rate continues to soar in the face of an accelerating economic downturn. The companies are now fighting over the dwindling pool of employers who are still in hiring mode -- the main source of their revenue."