Welcome to this morning's edition of "First To Know," a series in which we keep you in the know on what's happening in the digital world.
Today, we're looking at three particularly interesting stories. Twitter filed the paperwork to go public -- and everyone is buzzing about what it means. While we’re on the subject of Twitter, the company has rolled out a new filter for verified users only. And if you're considering buying an iPhone 5C, act quickly -- pre-orders have started.
Check out the video above for more on these stories.