It may seem madness, or voguishly contrarian, to argue that Facebook is a declining power. But here are eight reasons to think that, in terms of influence if not wealth, Facebook has indeed peaked. 1. A drop in users In its latest earnings call, Facebook revealed that - for the first time - the number of active daily users in the US and Canada (its biggest market) dropped. This is remarkable. The drop was small: 184 million rather than 185 million. But it was a drop, and the first time there has been a drop, and the drop preceded the changes Mark Zuckerberg announced about making the News Feed prioritise "meaningful interactions" and de-prioritise content from news publishers. Get the full story at BBC News