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.
Dotcal - Personalized booking pages for absolutely everyone
Easy! Appointments - Open Source Appointment Scheduler
Planist - Schedule meetings in an easy way Planist can connect with your google calendar to automatically check availability and help you connect with your best contacts, prospects, and clients.
Meeting Scheduler for Gmail - Easy scheduling directly from Gmail
Meetsy - Invite friends for your events and gather everybody's photos