Gwibber - Gwibber is an open source microblogging client for GNOME developed with Python and GTK.
Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
TweetDeck - TweetDeck is your personal browser for staying in touch with what’s happening now.
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Socialite - History Ever since we acquired Socialite from Realmac Software in December 2010, we have been planning on releasing a faster, more stable version 2.
Mailbird - Mailbird is the best email client for Windows 7, 8 and 10