Twitter is making it clear that it will be targeting mobile users over the course of the next few months. They will be issuing a new ad campaign and promoted accounts system. This will help make sure that the site is generating enough user interest to capture the attention of many people out there. It can also help the company compete in this new format, rivaling some of the other social media sites out there.

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Twitter Brings Promoted Accounts to Timelines to Reach Mobile Users – AdAge.com