Twitter has successfully figured out mobile advertising, generating over $270 million in revenue last year which is expected to double this year. Mobile ads account for over 65% of Twitter's revenue, positioning it as a leader in the mobile space. While Facebook and Google dominate traditional web traffic, they are struggling to develop strong mobile platforms. As consumer reliance on mobile increases, marketers will need to address the growing mobile opportunity, with mobile advertising projected to surpass traditional web advertising. Twitter's current mobile advertising success positions it to lead the development of mobile media as a key marketing opportunity.