"One of the most important things we can do to promote diversity in the workplace is to correct for the unconscious bias that all of us have," Sheryl Sandberg, Facebook's chief operating officer, wrote in a post announcing Facebook's decisions to publish the training course. "Studies show that job applicants with 'black sounding names' are less likely to get call backs than those with 'white sounding names' - and applicants called Jennifer are likely to be offered a lower salary than applicants called John, and organisations which consider themselves highly meritocratic can actually show more bias," Sandberg said. Workplace diversity continues to be an issue for Facebook too. In June, the company reported that 68 percent of its employees are men, and in technology-related roles, males made up 84 percent of its workforce. Just over half of Facebook's employees are white.