Just as an interesting note on the community engagement front: Krystle is amazing. I once wrote a featured article for WikiHow. [1] I was later contacted by email by Krystle who asked if I would be happy to get a gift from WikiHow. A few weeks later, a WikiHow-branded USB stick and a card arrived.
Next time I'm in the mood for writing an instruction guide, WikiHow has my undying loyalty. It's a great community and I know a few female editors who are extremely comfortable at WikiHow but find Wikipedia intimidating. They are a pretty good litmus test for efforts like the Teahouse and other editor engagement projects.
[1] http://www.wikihow.com/Write-a-Philosophy-Paper