eMarketer estimates there are 26 million monthly users of Twitter in 2010. That makes users of the microblogging service a relatively small minority of internet users, at 14.6%, and daily users are naturally even fewer in number. But their voice is disproportionately loud. According to ExactTarget, daily Twitter users are highly active across the social web. They are about three times as likely as internet users on average to upload photos, four times as likely to blog, three times as likely to post ratings and reviews, and nearly six times as likely to upload articles. They create, share and comment on content at high rates, making them valuable to marketers for much more than their potential influence on Twitter alone.
