Intercom on Product Management - The ultimate resource for aspiring product managers
Houseparty - Brining empathy to online communication.
userinput.io - Get on-demand feedback for your app, website or idea. Learn how to improve by hearing real opinions.
Skype - Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.
ithinki - A simple user feedback tool for start-ups
Rume - Video chat that doesn't feel like work