New research from PEW is out this week, The Demographics of Social Media Users. Looking at the population of social media networks, they found that all social networks, except Twitter, are more popular among women than men. Specifically:

· Facebook is most popular with women, 72% of female internet users have a profile, compared with 62% of US men. The majority of users are between 18 and 29.

· Twitter is marginally more popular with men than women, particularly those under 30 with some college education.

· Pinterest has by far the highest percentage of female users, with only 5% of men using it, compared with 25% of women.

· Instagram is more popular with women than men, 16% versus 10%, and is most popular for those under-30. Only 3% of internet users aged 50 to 64 use Instagram.