Startup School - How to start a startup, by Y Combinator
Instaaa - Promote your startup using AI-powered outreach
SkySilk - SkySilk Managed Cloud Services, Offers Free Cloud Resources
Promotehour - Free list of 1100+ media outlets to pitch your startup
Apply to YC (Y Combinator) - Curated collection of resources for founders applying to YC.
Submit.co - Find where to get press coverage for your startup