Gender concerns among bloggers

I continue today writing on sex and gender and early Christianity (I'm finishing up c. 3 of Sex and the Serpent), but I took a lunch break and surfed over to the Biblioblog Top 50. I scrolled down the page and was struck by the fact that in that list of hundreds of names and blogs I am just about the only woman's voice represented. And as a voice, my woman's voice would have to be a voice asking us to rethink orthodoxy and heresy, to revision the struggle for power and authority, to listen to the echoes of those who lost the theological and social battles, and learn from our past to better our lives and those of our children.

Why are there so many male bibliobloggers? Why are there so few females on that list?