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. Google quietly opened a public sign-up form for its Glass. Target is offering a $75 gift card for anyone who buys the iPad mini and a $100 card for buying the iPad Air. Finally, Twitter announced a new feature: custom timelines.
Check out the video above for more on these stories.