Take Back the Tech!
Take Back the Tech is a movement that is in response to female bloggers being targeted for hate-speech, especially sexualized and violent threats. For insight into the issue, read How the Web Became a Sexist Paradise. Then, if you are a blogger, link to the sites and articles and support female bloggers by linking to them and standing against this sort of sexist intimidation.
If you aren't a blogger, you can support the movement anyway. Post supportive comments on women's blogs, check out the site above and take action, and most of all support the women in your life to use technology without fear.