Product Hunt - A website that lets users share and discover new products
Passerine - Refined Product Hunt Desktop Client 🚀
BetaList - BetaList provides an overview of upcoming internet startups. Discover and get early access to the future.
aiim - AIIM is the community that provides education, research, and best practices on information...
PitchWall - Browse new startups, and submit your mobile app/games startup's beta page here.
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.