I did think of that, and while some are all-male, it was hard to tell with the rest because they had no obvious author list.
Even so, the 'various' blogs are in a minority, so even if every one had a female author, it'd be heavily biased towards men. It's no wonder we have so many women in the industry when those that are don't talk about it.
Coding Horror is like comfort food. It's not very healthy, but it makes you feel better.
Sometimes I feel like I can't program and I can't write. Then I visit Coding Horror, and I don't feel so bad anymore. At least I don't write book reviews for books that I clearly haven't read.