GaywiredThe number of Fortune 500 companies that ban workplace discrimination for transgender Americans has risen 60 percent since January 2006 and has quadrupled since 2003, according to the Human Rights Campaign Foundation's "State of the Workplace for Gay, Lesbian, Bisexual and Transgender Americans 2006-2007," released this week. The report also showed steady growth in the number of employers offering domestic partner benefits over the last year.