Here’s a list of random stuff I follow/like.
Seth’s Blog – Seth Godin’s blog on Marketing
Startup lessons learned – Eric Ries (The Lean Startup) blog
James Clear – Some good reads on habits
Product Talk – blog by Teresa Torres
Steven Johnson Blog – Author of Where Good Ideas Come From
GetLighthouse – a blog about management and leadership
Ken Norton Blog – Google product manager, good book summaries
SVPG – Silicon Valley Product Group, focusing on building products that consumers love
Ryan Holiday – Reads a lot of books and summarizes/reviews them
Erik Barker – Science-based postings on motivation, productivity, etc.
Blinkist – Book summaries
Quora – Q&A site with frequent postings from insiders; follow product management, product development etc.
1 sentence summary – 50 major business books summarized in one sentence
Sivers Book Summaries – Author Derek Sivers’ book notes
Product Manager HQ – A comprehensive resource for product managers
Product Book Shelf – Much like this website, summaries of books about product management
Product School – Specifically this page about online resources.