5 things U.S. techies need to know about Japan’s social media ecosystem

1.  LINE is the Facebook (and the Uber and Apple Pay) of Japan

With about 40 percent of Japan’s entire population using it every month, LINE is the undisputed leader.
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A number of Western companies are already using LINE to promote their brands.
http://venturebeat.com/2015/11/28/5-things-us-techies-need-to-know-about-japans-social-media-ecosystem/