If you are going to add a gaming component to your web site...

An article on TechWeb states:

The survey of over 3,000 American adults found the usual -- more men (45 percent) than women (35 percent) play computer and/or video games -- but it also uncovered some new statistics. Women, for instance, prefer to play games solo, while men are more likely to play with others, whether on- or offline.

So if you are going to add a gaming component to something you are building, you should keep in mind this different in how men and women like to play.