Horde - Horde Groupware is a free, enterprise ready, browser based collaboration suite.
Moodle - Moodle is the world's most popular learning management system. Start creating your online learning site in minutes!
Roundcube - Web-based IMAP email client
Collaborator - Система дистанційного навчання повного циклу із аналітикою в реальному часі та інструментами внутрішнього маркетингу.
Mailo - Mailo is an email client where you can send and receive emails to and from anyone with an email address.
Lessonly - Getting teams up-to-speed and keeping them there.