Opentute - Opentute helps businesses to effortlessly launch a private eLearning and communication platform to engage teams and clients.
MakePlans - Online appointment booking - MakePlans
Ruzuku - Ridiculously easy online courses
Appointment Booking Calendar - With the Appointment Booking Calendar you can accept online bookings from a set of available time-slots in the calendar.
eLearnCommerce - eLearnCommerce is the platform that allows you to develop engaging services that are ready to serve the customers.
Dudle - Dudle is an online scheduling application, which is free and open source.