Census data.

The Census releases all sorts of interesting numbers. While poking around it, I found this graph that I thought particularly interesting:


(clicking on it makes it bigger)

The degree that the increase in family income over the past few decades has been from women working more is really quite impressive. Male income has really been stagnant. Although since you can get a lot now that you previously couldn't get at any price it isn't all that bad in any absolute sense for men.