Wikipedia's entry on muted group theory was very interesting - thank you! It also explains the prevalence of feminist blogs that aren't doing outreach. In the tech world, any blog post that isn't up-to-the-minute news is probably doing outreach of some kind - but some are doing outreach to newbies, and others are doing outreach to more experienced people. "Here's this cool tool I've started using, and why you should too", or "here's how I solved this problem I was having". So it's interesting that the feminist blogosphere is so different.