Twitter Inc., the microblogging service that plans an initial public offering, is outpacing its bigger competitors Facebook Inc. (FB) and Google Inc. (GOOG) in a crucial growth area: mobile advertising. Ads on smartphones and tablets will make up more than half of Twitter’s ad revenue this year, according to EMarketer Inc. That puts it ahead of Facebook, which generated 41 percent of its ad revenue from mobile promotions in the latest quarter. Google, the largest search engine, is estimated to get slightly less than one quarter of its revenue this year from mobile ads, EMarketer said.
While Twitter makes up just a tiny slice of the $16.7 billion projected mobile-ad market this year, it has the advantage of concentrating on mobile from an earlier stage and from a smaller base. That may help assuage investor concerns going into the company’s IPO, as mobile has been an area that has bedeviled other Internet companies. Facebook and Google, which initially focused on online ads for personal computers, have more recently had to reshape their massive ad businesses as users spend more time on the Web via smartphones and tablets.