Secure instant messaging system for team collaboration
John's Background Switcher - Switch backgrounds to trending imgur, reddit, tumblr threads
LAN Messenger - LAN Messenger is a decentralized UDP IM-style chat client which supports usernames...
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Softros LAN messenger - LAN messenger for an internal office chat for home or business users. It does not require a server and is very easy to install and use. It supports personal chats, group chats, message brodcasting, files transfer and remote desktop access.
Variety Wallpaper Changer - Variety is a wallpaper changer for Ubuntu which is featureful, yet slim and very easy to use.
Bopup IM Suite - Organize secure messaging system and communicate instantly via self-hosted IM server.