LINE is a messaging program kind of like WhatsApp, but it has a desktop client. However, this desktop client only runs on Windows. On Linux, it has to run under Wine, which allows running Windows programs (some) inside the Linux environment. Caveat: sending stickers does not appear to work.
UPDATE 7. JULY 2015: Since this post, my version of LINE has been updated to 18.104.22.1687, and it looks like stickers work now!
UPDATE 31. JULY 2016: Looks like in July 2015, LINE released a Chrome app. Users of Chrome can just use that extension instead of using this method: Link
Running LINE in Ubuntu 14.04
- Install Wine
sudo apt-get install wine
- Install VC++ 2008 Redistributable
- Download and install LINE for Windows
Without installing the VC++ 2008 Redistributable, LINE would intermittently crash (even though it was able to start correctly). This worked on my Ubuntu 14.04 x64 system.
LINE Version: 22.214.171.124
Wine Version: 1.6.2