Ellen Pao, a former partner at Silicon Valley venture capital firm Kleiner Perkins Caufield & Byers, says women were excluded from all-male meetings at the company and denied seats on boards. The firm says she was fired for poor performance. Robert Galbraith/Reuters/Landov hide caption

itoggle caption Robert Galbraith/Reuters/Landov

A long line for a men's room at a 2009 tech conference in Omaha, Neb. Photos of this situation have now inspired a Twitter feed. SleepyJeanne/Flickr hide caption

itoggle caption SleepyJeanne/Flickr