Don’t let anyone overpay you: On having as a company only fixed product prices and not allowing big fish to ask and pay for different service/functionalities. Interesting food for thought, as I've seen the opposite more than once.
Google Inteview University: The (huge) list of topics you should learn to apply for a Google development position. Nice to get deep into algorithms.
Brainstorming doesn't work, try this technique instead: Presents an interesting concept, "Brainwriting": write first, talk second. Post all the ideas on a wall, without anyone's name attached and then everyone votes on the best ones.
Interview with Joel Spolsky: Where he says that open spaces and other startup-like "perks" like ping-pong tables are undesired by developers, that they need to concentrate.
I used to be a human being: One of those long reads that make you think about what you do with your life, about how we've become slaves to mobile phones and instant-everything: notifications, emails, responses by chat from people...
O'Reilly free programming books: Interesting list of free ebooks. There are more following the links to subsectins at the bottom of the initial list.
Technical Tribalism: The great Zakas about demonizing developers for not doing things the same way you're doing them. Short but interesting read.
Fuck you startup world: Funny (but very real) rant about the startup ecosystem. Had some laughts reading it.