Product Hunt - A website that lets users share and discover new products
Beta Family - 50,000 testers to test your app
AlternativeTo - AlternativeTo lets you find apps and software for Windows, Mac, Linux, iPhone, iPad, Android, Android Tablets, Web Apps, Online, Windows Tablets and more by recommending alternatives to apps you already know.
Betatesters.io - The platform connecting mobile developers and beta testers
BetaList - BetaList provides an overview of upcoming internet startups. Discover and get early access to the future.
Passmarked - Simple, all-in-one test to check the quality of your website