Since everyone has just gotten used to the old Facebook News Feed, the social network might be changing it all over again. Sources told The Wall Street Journal Wednesday that Facebook is exploring changing the News Feed to increase the amount of information that advertisers can access—meaning it's seeking to create an unfiltered version. Facebook is also looking to expand the “Like” button to include other gestures that marketers and third-party developers can create, these sources said. This too would help marketers; the “Like” button is a hit with them, as it helps target ads. Facebook confirmed it is testing a real-time News Feed, but declined to comment further.