Mr. Zuckerberg, the 26-year-old Facebook chief executive and co-founder, may be the man of the moment in the United States and much of the rest of the online world. But here in Japan, one of the globe’s most wired nations, few people have heard of him.
And relatively few Japanese use Facebook, the global social-networking phenomenon based in Palo Alto, Calif., that recently added its 583 millionth member worldwide.
Facebook users in Japan number fewer than two million, or less than 2 percent of the country’s online population. That is in sharp contrast to the United States, where 60 percent of Internet users are on Facebook, according to the analytics site Socialbakers.