This week social media giant Facebook announced that it was changing its news feed algorithm in order to prioritise content posted by friends and family. So content posted by publishers will show up much less on FB news feeds, with considerable loss of traffic and revenue for them. Facebook too said it expected a drop in reach and referral traffic for news media sites whose audience comes chiefly in response to content posted on the publisher’s official Facebook page. It’s not the first time that Facebook has tweaked the algorithm for its news feed, which is watched by 1.65 billion users every month. But this deals an unkind cut to news media sites that have come to depend on it to expand their audience. Media businesses around the world are clearly not lining up to press a “like” on this one.