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
Zynq - Schedule meetings from an email with 1 click!
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.
Secure Calendar - Privacy respecting calendar