There is an article at TheScientist.com about female science bloggers. The Scientist asked readers about their favorite science blogs, and all the respondents were male and the blogs they recommended were written by males.
There are a number of women blogging about science--many more than I realized when I first started looking. About 1/5 of bloggers at www.scienceblogs.com are female, according to this article.
Whatever you think about blogging (waste of time, etc.), you should be aware of how influential blogs are becoming. Web-savy students read a lot of blogs--and form their perceptions and opinions about science and other topics based on what they see and read on the web.
See the entire article at: