Udemy - Online Courses - Learn Anything, On Your Schedule
Gwibber - Gwibber is an open source microblogging client for GNOME developed with Python and GTK.
Adobe Learning Manager - Adobe Learning Manager (formerly Adobe Captivate Prime LMS) is easy to setup and helps in delivering engaging learning experiences in a personalized manner across devices.
Choqok - Choqok - KDE Micro-Blogging Client The name comes from an ancient Persian word, means Sparrow!
Moodle - Moodle is the world's most popular learning management system. Start creating your online learning site in minutes!
TweetDeck - TweetDeck is your personal browser for staying in touch with what’s happening now.