Can we learn from other industries that are facing similar challenges? I'm certainly impressed with the medical and legal professions for dramatically improving the gender balance in the past 30 years[1]. Can we adopt some of the strategies learned there? Google's changes in maternity leave [2] dramatically increased their retention of new mothers but retention is different than attraction and promotion. The "sexual harassment" training at my old fortune 500 job certainly didn't have any helpful information about encouraging diversity aside from don't do anything that could you sued...
[1] http://www.theatlantic.com/sexes/archive/2012/12/more-women-... [2] http://www.slate.com/blogs/xx_factor/2012/08/28/google_mater...