Meetingbird for Gmail - View your calendar and schedule meetings right from Gmail
FullCalendar - FullCalendar is an open-source JavaScript event calendar.
Kin Calendar - The simple and connected calendar
Letsfind - Letsfind is a fast, easy-to-use, ad-free way to create online (meeting) polls.
Calendly for Chrome - Schedule meetings without leaving your inbox
Fasterplan - Fasterplan is a collaborative tool that helps you and your friends/business partners to better...