<p>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.</p><p>Today, we're looking at three particularly interesting stories. Google Keep now has an offline-capable Chrome app. Hotmail has finally closed down, and existing users have been switched to outlook.com. And Warren Buffett is now on Twitter.</p><p>Check out the video above for more on these stories.</p><p>Thumbnail image via iStockphoto, Thomas_EyeDesignTopics:Apps and Software, First to Know, hotmail, microsoft outlook, Tech, Twitter, Warren Buffett</p><p><a href="http://mashable.com/2013/05/03/death-of-hotmail-brief/">Keep reading...</a></p>