Superpeer Channels - Beautiful livestreams with your subscribers
Appointment Booking Calendar - With the Appointment Booking Calendar you can accept online bookings from a set of available time-slots in the calendar.
Introwise - All-in-one scheduling and business management platform for coaches, tutors and consultants to run their business online.
MakePlans - Online appointment booking - MakePlans
Expert Republic - 1-1 Video consultations with experts from any industry
Dudle - Dudle is an online scheduling application, which is free and open source.