Where have all the maidens gone? (money is male dominated - why?)

Something that I have noticed is that there are very few women who are interested in money, economy, debt, etc. You do find some interested in politics but at the "tea-party" level. Where are is the "other half" when it comes to sites like this? (I am sure there are a few here, but it is strikingly obvious that there is a lack of feminine interest. Why is that?

What are your thoughts on the topic?