What the company or idea is
Evan Williams is not a company. He is an internet entrepreneur who co-founded Pyra Labs (to build project management software), helped spin out Blogger from it, co-founded Twitter after its incubation at Obvious Corporation, and created Medium as a publishing platform.
How it actually makes money
The document does not state how Pyra Labs, Twitter, or Medium made money.
What works
Blogger became one of the first web applications for creating and managing weblogs. Twitter ranked third among social networks in February 2009 with 6 million unique monthly visitors. Pyra Labs survived key employee departures and was acquired by Google on February 13, 2003.
What does not
None of the ventures described had a stated business model. The document gives no evidence of pricing, subscriptions, advertising, or monetisation mechanics for any company Williams founded or co-founded.
What to take from it
Williams’ pattern is feature-led platform creation: a note-taking tool became Blogger; a microblogging experiment became Twitter; a publishing interface became Medium. None were conceived as standalone businesses, and none are described with revenue logic.
Is it worth your time
Yes — as a case study in how product features become platforms, and how founders pivot without clear revenue models.