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.
ShareAccount - Share your account without giving out your password
Meetingbird - Powerful meeting scheduling and notes — right in your calendar
Wing-project.org - WING - Wireless Mesh Network for Next-Generation Internet
Clara - Clara is a virtual employee that schedules your meetings, getting you to the work that matters, faster.
Callio by Netguru - Never miss a call from your client or prospect