Flare by GoDaddy - Discover, give feedback and support startup ideas
Pramp for Product Managers - Practice product management mock interviews with other PMs
Generating Product Ideas - Find ideas for your next business or side project
The PM Interview - Practice PM Interview Questions (w/ timer).
Little Inventors - Turn children's ideas into reality
Apply to YC (Y Combinator) - Curated collection of resources for founders applying to YC.