A campaign on Twitter denouncing misogyny has gathered thousands of followers after a bloody rampage in California by a 22-year-old virgin who said he was motivated by hatred of women.
The hashtag #YesAllWomen was launched to allow women to share stories of misogyny in the wake of Elliot Rodger's assault on Friday in Isla Vista, near Santa Barbara, in which he killed six people before taking his own life.
In a YouTube video, Rodger spoke about his planned "day of retribution".
"I will slaughter every single spoiled, stuck-up blonde slut. ... All those girls that I've desired so much, they have all rejected me and looked down upon me as an inferior man," Rodger said in a YouTube video.
Thousands used the #YesAllWomen Twitter hashtag on Monday. "#YesAllWomen because every time I try to say that I want gender equality I have to explain that I don't hate men," one poster commented.
"I was born 1918. My mother fought so she, my sister and I could vote. U must fight so ur daughters vote wisely. #YesAllWomen," wrote another.
However the hashtag quickly spawned a rival thread - #NoAllMen. "#YesAllWomen are Beautiful and #NoAllMen are not Pigs! There is Evil in the World plain & Simple there always has been always will be," a poster wrote.