A recent article in the Atlantic outlines the power Mom's have in the blogoshpere.
You should read the whole post here, but here is a choice bit of information:
"Women are the major users of Facebook, Twitter, blogs, Pinterest, and every social media site except YouTube. They are engagers. They are sharers. It is natural to a women's personality to say why she buys something and why she like it. Women love to share news about the bargains that they got. They love deals and they love to talk about it."