Folks have posted enough great links here for me to start collecting them in one place. I’ve created a new Resources Google Doc:

https://docs.google.com/a/fasterthan20.com/document/d/1cQCRH6GW0VS4Pz5yZLzlqwtyr0yoSxGSBp3V1fPd9bM/edit#

I put links in from @jessausinheiler and @brooking as well as a few of my own. All you have write access (if you don’t, email me), so feel free to edit away!