Ask HN: Resources for microbusinesses

I've been developing an interest in starting my own microbusiness. I've got several books that I am working though, such as The Lean Startup, $100 Startup, Millionaire Fastlane, Choose Yourself, and the Startup of You. I was looking at Peter Thiel's Zero to One, but that seems to be aimed at a startup that's looking to grow into a bigger business than, and not the individual startup I am interested in.

What are some of the resources that people in the solo or very small startup scene use?