Who rules the Internet? These days it’s Upworthy, Eli Pariser’s socially-bent aggregator, which fills a gap in viral content where puppies used to sleep. The site’s sheer power on the Interwebs came quickly: In just two years, the site has come to fill the Facebook feeds of 5.4 million people. (So it’s no surprise that haters gonna headline-hate.) Upworthy is Pariser’s […]