Siftery - Share products your company uses and get personalized recommendations
Stackshare - StackShare is a comprehensive website that gives its users the chance to organize and share their technology stack with the rest of the community.
SaaSHub - Find and promote software that will help you grow your business or to be more productive.
WhatRuns - Extension that helps you identify technologies used on any website at the click of a button.
TestBox - Test drive your software options before you buy
Software Product Management Stack - Resources & tools to help you manage your software product