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.
UserBit - A full-stack qualitative research platform for UX & product teams.
Product Hunt - A website that lets users share and discover new products
Rage Grade by FullStory - Benchmark your customer frustration
Free Software Directory - The Free Software Directory is a project of the Free Software Foundation (FSF) and United Nations...
UXsniff - Track user behavior on your website and improve conversions with UXsniff: the user experience watchdog that looks out for you.