Product School - The global leader in product management training
Promotehour - Free list of 1100+ media outlets to pitch your startup
The Product Manifesto - Product Managers face the biggest challenges of our day, which is why our community needs a common set of product principles.
Submit Juice - Free and curated list of startup directories to promote your new startup. We manually post your startup to more than 150+ relevant directories and blogs to help your startup get discovered.
Intercom on Product Management - The ultimate resource for aspiring product managers
pressfarm - Pressfarm helps entrepreneurs find journalists to write about their startups.