The average social gamer is a 43 year old woman

"PopCap Games, maker of some of the world's most popular video games, today unveiled the results of a survey targeting "social gamers": Consumers in the U.S. and UK who play games on social networking platforms such as Facebook® and MySpace®. More than 24% of respondents said they play social games regularly, indicating a total social gamer population of approximately 100 million in America and the United Kingdom alone. And contrary to prevailing stereotypes, the average social gamer is a 43-year old woman.
[...]
Among the nearly 5,000 consumers who responded to the survey, more than 1,200 play games on social networking sites and platforms at least once a week, qualifying them as "social gamers" for the purposes of the survey. Two-thirds of all qualified survey respondents are U.S.-based. 55% of all social gamers are female and 45% are male — with the disparity being even larger among UK consumers (58% vs. 42%). The average age of social gamers is 43, with U.S.-based social gamers averaging 48 years of age compared to 38 for those based in the UK. Further, 46% of American social gamers are 50 or older, compared to just 23% in the UK. Only 6% of all social gamers are age 21 or younger.
Gender Differences
As with most forms of video games, men and women differ in their consumption of, and attitudes towards, social games:
Among the most avid social gamers, women make up the majority; 38% of female social gamers say they play social games several times a day, vs. 29% of males.
Women are more apt to play social games with real-world friends than men are (68% vs. 56%).
Men are more inclined than women to play with strangers (41% vs. 33%); nearly twice as many women as men say they play social games with relatives (46% vs. 29%).
Frequent Play
The vast majority (95%) of social gamers play multiple times per week; nearly two-thirds (64%) play at least once a day.
U.S. players tend to play more frequently, with 68% saying they play daily compared to 55% of U.K.-based social gamers.
61% of social gamers say their average social gaming session lasts more than half an hour; one in ten say their average session lasts 3 hours or more!
More than half (56%) of social gamers have been playing social games for more than a year.
About one quarter (26%) are new to social gaming, having started playing in the last six months.
About a third (35%) of social gamers say their consumption of social games has increased over the past three months, compared to 10% who said it has decreased."
Source: Research by Information Solutions Group (ISG), for PopCap, cited in a press release, 17th February 2010
(Lots of other stats in the press release)