Timezone.io - Keep track where and when your team is.
The modern web design process - An in-depth guide to the processes behind great websites.
TimeZoneNinja - Scheduling meetings around the world just got easy
Another Lens - A research tool for conscientious creatives by Airbnb
Time Zone Pro - A beautiful world clock for friends, family, clients and more
Design Principles - An open source repository of design principles and methods