Twitter is going through some growing pains as they undertake efforts to expand in Japan. According to their CEO Dick Costolo, they need to focus on recruiting a sales team to get more local ads up in the market.Twitter use …

You got it, brand pages from Twitter advertising are now available in Japan, and DoCoMo (page pictured above) is one of the first to take advantage of the the space. DoCoMo is Japan’s largest mobile operator. So far the US …