Meetingbird for Gmail - View your calendar and schedule meetings right from Gmail
Motion Firefox - All-in-one time management tool in Firefox
Kin Calendar - The simple and connected calendar
Task Muncher - Task Muncher is a cross-platform and web-based application that is designed to organize and keep the track of everything and focus on munching the weekly tasks.
Calendly for Chrome - Schedule meetings without leaving your inbox
TManager - TManager is the best hub for terriaria mobile players and communities.