This Nov. 19 screenshot shows the cover photo of an unofficial Marine group on Facebook called Just the Tip, of the Spear. The group and those like it have been accused of promoting sexism and of acting as a forum for hate speech. Just the Tip, of the Spear - 21/Facebook hide caption

itoggle caption Just the Tip, of the Spear - 21/Facebook

Caroline De Haas, 34, launched Macholand.fr after a company responded dismissively to her complaint against its sexist advertising. Courtesy of EGAE hide caption

itoggle caption Courtesy of EGAE

Watch out, Congress: Girl Up activists came to the nation's capital in June to lobby for issues affecting girls in the developing world. From left, Alexandra Leone (New Hope, Pa.), Grace Peters (Flemington, N.J.), Aklesiya Dejene (Chicago), Isabella Gonzalez and Erika Hiple (Stockton, N.J.) Ryan Kellman /NPR hide caption

itoggle caption Ryan Kellman /NPR

Hackers pose at Disrupt Hackathon in 2011. Araya Diaz/Getty Images hide caption

itoggle caption Araya Diaz/Getty Images