Add Yahoo as a preferred source to see more of our stories on Google. Twitter users can now start streaming live video right from within the service's mobile apps, courtesy of Periscope: Periscope and ...

Social network makes its move into live-streaming video with free app that allows public and private broadcasts from celebrities and regular users alike Twitter has launched Periscope, an app that ...

Meerkat has enjoyed over a month of dominance in the streaming-video category, but Twitter's release of Periscope has changed all that. Here's why. Jason Parker has been at CNET for nearly 15 years.