If you're a guy wanting to date, here's some advice that seems good:
[30sleeps.com]
May be applicable to women too.
You go do things you enjoy doing, and you meet women who enjoy those same things. It is stupid to do things you don't enjoy doing and meeting women whose interests are not the same as yours. This is not that complicated.
Thank you Sticks! You just explained why I have no interest in attending events or groups that don't interest me just because there might be single women there. For me it would be a waste of time because they wouldn't share that interest with me and, because I have researched these groups that are part of Meetup.com, I already know that the women my age who are members of these groups are already on the paid dating site that I use. In other words, attending those groups would do nothing to increase my dating pool.