App Launch Checklist - Planning tool for launching your app successfully
Startup Toolkit - Interactive how-to guides to launch your startup
When To Launch - Launch your product on the right date and time based on data
Techstars Entrepreneur's Toolkit - Online resource to help you learn about entrepreneurship
The Launch Checklist - Lauch like a pro on Product Hunt
AwesomeHunt - Community-curated lists of learning resources on any topic.