Facebook is still working out how to reduce the reach of fake news and misinformation on its site and today, it starts testing a new feature that sounds like it might be pretty useful. When an article link is shared in someone's News Feed, there will now be a small "i" button that will bring up additional information about the publisher and article when clicked. It will include information from the publisher's Wikipedia page, a link to follow its Facebook Page, Trending and Related articles about the same topic and a graphic on where and how the article is being shared across Facebook. When any of that information isn't available, Facebook will say that explicitly. That in itself is pretty useful. For example, if there's no Wikipedia page for the publisher of the piece, it could mean it's not a reputable outlet.