However, the ratio of elderly persons using SNS or
microblogs is low. Of the estimated 5,240,000 Facebook
users in Japan at the end of October 2011(Referring to
targeting options for Facebook Ads), the number of users of
65 years of age or older was 671,000, or 1%. (The
percentage of the population aged 65 years or older in Japan
is 23.1% as in [2].) In addition, as age increases, the ratio of
the usage of broadband and mobile internet decreases as in
[3].