Facebook is letting you take liking something to a whole new level with the introduction of a Buy button within users posts and news feeds later this week. #TDSBreakingNews Facebook getting buy button on ads. The move is being viewed as a direct challenge to Amazon. From the Business Line: In an image of what this feature looks like, a ‘Buy’ button sits in the bottom right corner of the ads that users normally see as they scroll through their Facebook news feeds. This feature is currently in its test phase, so it is being used only for a few small and mid-size businesses in the US.