Msg#: 4669413 posted 9:43 am on May 8, 2014 (gmt 0)
Apparently, there's now 20 languages.
Advertisers can now target Promoted Tweets and Promoted Accounts in languages that their audience understands, while users are eligible to see highly relevant ads in their language. Along with language-specific analytics, this targeting is available to all advertisers globally and through our Ads API.Twitter Introduces Language Targeting In Accounts and Tweets [blog.twitter.com]
We use a number of different signals to determine a userís language, including the language selected in a userís profile settings and the languages that correspond to a userís activity on Twitter. A user can be targetable by multiple languages if we infer that a user is multilingual.