I maintain this hub in order to have a stable place I can link to in long-lived content such as emails and forum posts. It has had real content in the past and may again someday, but for now it's just here to link to the places with the real content.
I manage the Newsfeed Production Engineering team at Facebook. You can find my professional profile on LinkedIn. I keep it up to date, though I'm not very active there. If you know me, you can get in touch with me on Facebook.
I blog intermittently about economics, liberty, and technology at The Underground Economist (http link since Tumblr is still in the dark ages). That is linked to Facebook and Twitter and there's an RSS feed you can use to follow just my blog.
My open source contributions mostly live at GitHub.
The best way to get in touch with me is by email.