Hintapp - Make Cue Cards for Your Speech
Landing Pages in MailChimp - Easy to build, custom landing pages for free
Validated ideas - List of 5,000 poorly executed but popular apps
Viral Loops for Startups - Virality for startups made easy 💪
Seedproof - Get feedback for your startup ideas 🔥
Carrd - Simple, responsive one-page site creator.