The United States has seen a reversal in a long-term trend that saw women increase involvement in technical fields such as math and science. From the mid-1980s to 2001, female enrollment in math and science doctoral programs in the United States jumped 20 percent, according to research cited by Rosser.

But in a more recent study, enrollment of women in computer science between 1998 and 2004 fell 80 percent, compared with a 32 percent drop for men and women combined. While the dot-com bust explains part of the retreat, Rosser and other researchers believe the disproportionate drop underscores the frustration women feel over cultures that are often less than welcoming to women in technical fields.

One in five kids has been bullied or threatened via their mobile phone or computer, according to a study by U.K. children's charity NCH.

Bullying by text message was the most common form of abuse reported, with 14 percent of kids interviewed saying they had received upsetting messages on their mobile phones.

The survey, titled "Putting U in the Picture (PDF file)," collated responses from 770 youngsters ages 11 to 19. One in 10 said someone had used a camera phone to snap their picture in a way that made them feel uncomfortable, embarrassed or threatened. Of those, 17 percent believed the images had been forwarded to others.

Not everything about blogging is a good thing. Blogging has led to a rise in cyberbullying in schools where blogging allows kids to easily bully other kids and mock them. They also use digital photos for the humiliation of classmates. Kids are quick with technology and have little trouble with the latest photo sharing and blogging tools.