
Empathy
Pidgin
Trillian
Adium
Skype
Facebook Messenger
Jitsi
WhatsApp
MindManager
Xmind
MindMeister
Coggle
FeatureMap
Idea Market
Viima
Stormboard
Empathy
MindManagerEmpathy can still be recommended for users who are running older versions of the GNOME desktop environment and appreciate its integration capabilities. It might also be of interest to those who are exploring the history of Linux desktop applications or have a particular interest in legacy software solutions.
Pidgin - Pidgin is an easy to use and free chat client used by millions. Connect to AIM, MSN, Yahoo, and more chat networks all at once.
Xmind - Xmind is a brainstorming and mind mapping application.
Trillian - Trillian is a decentralized and federated instant messaging platform that lets your whole company send private and group messages, keep tabs on what co-workers are doing, share files, and much more.
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Adium - Adium is a free instant messaging application for Mac OS X that can connect to AIM, MSN, Jabber, Yahoo, and more.
Coggle - Coggle is a simple, beautiful, powerful way of structuring information.