They offer services for incorporation too. Never used them so cannot speak about their service level. Seems to be a preferred choice for some YC startups. Then of course there is LegalZoom. They are around since 2001.
I've skimmed through it, and it's a fine guide if you're starting a traditional startup that plans to raise money.
If you're starting any other kind of business it's a little over kill.
Generally registering an LLC, applying for a business license and then requesting a Tax ID number from the IRS is really all you need for a web based business of 1 person.
I guess I'm not really understanding your question.
In order to legally do business and report on your taxes (in washington state for example) you need to register your entity as a business with the state -- in the form of a business license.
I only used the phrase "web based business" assuming you have no physical property (retail) or employees which add additional licensing requirements and more complexity.
The OP is not talking about starting an investor-bait C-Corp, though. That's what Clerky specializes in.
Unless there's something not mentioned in the OP, he doesn't need a board, he doesn't need shares, he doesn't have a partner. He needs a disregarded entity.
They offer services for incorporation too. Never used them so cannot speak about their service level. Seems to be a preferred choice for some YC startups. Then of course there is LegalZoom. They are around since 2001.