Indie Hackers - Connect with fellow entrepreneurs, developers, and bootstrappers who are sharing the strategies and revenue numbers behind their companies.
Know Your Crew - Game night with insight on your friends
PipeCandy Insights Platform - 50+ business insights about eCommerce companies that matter!
Startup School - How to start a startup, by Y Combinator
Makerbase - Like a user-editable IMDB for product makers
Case Study Club - Learn how people design digital products