Paul Graham
His essay archive explores startups, early customers and founder decisions. Start with “Do Things that Don’t Scale” for the case for hands-on work with initial users. Treat the essays as arguments from experience, rather than a universal operating manual.
Steph Ango
Ango writes about design, tools, attention and durable notes. His short essays are useful when a product decision feels more complicated than it needs to be. The site offers a topic index and several ways to follow updates.
37signals and Signal v. Noise
Signal v. Noise is now a closed archive, not an active company blog. Its own homepage directs readers to Jason Fried and DHH on HEY World. The archive remains useful for historical arguments about software, work and bootstrapping.
Read the original, then the reply
Social posts are a useful entry point. Follow through to a full retrospective when judging a revenue claim or tactic: the longer version may include costs, failed attempts and conditions missing from the headline.