Calendly for Chrome - Schedule meetings without leaving your inbox
Schedulr - Schedulr makes it easy to meet with others w/out the headache of back-and-forth emailing.
Mixmax Calendar - The fastest way to schedule meetings with anyone, anywhere
Meetingbird for Gmail - View your calendar and schedule meetings right from Gmail
Coffee Chats - Beautiful one-page sites that sync to your calendar to easily schedule chats. Plus, Coffee Chats connects with Stripe so you can easily charge for chats turning Coffee Chats into your all-in-one site, booking, and payments solution.
Plann3r - Schedule any kind of meeting in less than 30 seconds!