Skype - Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.
Moodle - Moodle is the world's most popular learning management system. Start creating your online learning site in minutes!
Slack - A messaging app for teams who see through the Earth!
Chamilo - Chamilo is a software that allows you to create a virtual campus for the provision of online or semi-online training.
GoToMeeting - GoToMeeting is a web conferencing service offering a range of services which are available on Mac, PC, iOS and Android devices.
Open edX - Open edX is implemented mostly in Python (with some Ruby and NodeJS as well) and the code is being...