Intercom on Product Management - The ultimate resource for aspiring product managers
PM News - The best product career advice —from world-class PMs.
Product School - The global leader in product management training
On Deck - Business Loans | Small Business Funding | OnDeck
The Product Folks - A volunteer-led community of product managers and makers
Indie Hackers - Connect with fellow entrepreneurs, developers, and bootstrappers who are sharing the strategies and revenue numbers behind their companies.