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"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.\nToday, we're looking at three particularly interesting stories. Facebook posted good numbers this quarter, as it experienced a 51 percent spike in monthly mobile users. 819 million unique users now log in via mobile each month. Google has unveiled Chromecast, a $35 plug-in HDMI gadget that will stream content to any TV screen with an HDMI port. And the U.S. House of Representatives quashed a bill Wednesday that would have severely limited NSA data collection under the Patriot Act.\nCheck out the video above for more on these stories.\nImage: Rainier Ehrhardt/Getty Images\n"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2013/07/25/facebook-mobile-brief/>