"Interestingly, when broken down by industry, more male LinkedIn network in traditionally female fields, such as the cosmetics industry. But in tobacco and ranching industries, which are normally considered male-dominated, women are the predominant networkers. Why? LinkedIn suggested the "minority sex has to network harder than the dominant sex to break into those industries."

"Today, more than half of all PhDs in the life sciences are awarded to women, compared to a measly 13 percent bestowed upon women in 1970. However, women still lag far behind men in full professorships and tenure track positions in math-intensive fields.

Rightly or wrongly, many people have a picture in their minds of the average online gamer, and it probably involves someone not yet old enough to vote, huddled in their parents’ basement killing dwarves with mystic powers in games like World of Warcraft. A growing category of what are called “social games,” however, appeals to a much different demographic, according to a recent study.