Meetingbird for Gmail - View your calendar and schedule meetings right from Gmail
Kin Calendar - The simple and connected calendar
Calendly for Chrome - Schedule meetings without leaving your inbox
Calendly - Say goodbye to phone and email tag for finding the perfect meeting time with Calendly. It's 100% free, super easy to use and you'll love our customer service.
Google Calendar - Spend less time managing your day & more time enjoying it
Woven Calendar - An intelligent calendar