Over the past quarter-century, millions of Americans have seen their real wages decline. Wage dispersion has also increased, with the best-compensated workers gaining relative to the rest. Information technology appears to be implicated in these shifts, particularly in the now-dominant service sector of the US economy. Since the mainframe era, workplace IT has become more standardized and easier to use. As a result, the value to employers of IT-related job- and firm-specific skills has declined. Many workers need less training. Employers can replace them more easily and have less incentive to pay premium wages to retain those with experience-based skills.