Where are the women gurus?

As a follow up to my "where are the women speakers" post, let me point you also to Molly Holzschlag's excellent post "where are the women of CSS?."

I don’t understand why women in CSS are so overlooked, and with the two of us that have been mentioned - at least in this case - it’s either far less often than the guys or, in Holly’s case, always as a duo with Big John, and not on the merit of her own individuality. I want to understand this. Maybe you can help me.