Twitter's active users have risen by 14% in Q1 2017, but advertising revenue fell by almost 8% from a year earlier. Twitter's CEO, Jack Dorsey, said the company continues to face revenue headwinds, but believes executing on their plan and growing their audience should result in positive revenue growth over the long term. The increase in users is in part due to measures to reduce abusive content and new features, including live video broadcasting. Twitter shares rose 11% following the announcement.