Twitter`s ad revenue to double this year: Report

San Francisco: A research firm expects Twitter`s ad revenue to double this year as the online messaging service delivers more marketing pitches aimed at consumers using smartphones and tablet computers.

In a report on Thursday, eMarketer projected Twitter`s worldwide ad revenue will climb from an estimated USD 288 million last year to USD 583 million this year. In 2014, eMarketer predicts Twitter`s ad revenue will approach USD 1 billon. EMarketer believes mobile devices will account for more than half of Twitter`s ad revenue this year. The research firm makes educated guesses about Twitter`s revenue based on market trends and data. Twitter, based in San Francisco, is privately held and does not disclose financial figures. Twitter has not set a timetable for an initial public offering of stock. PTI