
Since the inauguration of Donald Trump, it has been widely understood that Facebook swayed the outcome of both the United States presidential election and the EU Referendum. Micro-targeted advertising on the site – which is used by political parties to serve highly specific adverts to highly specific groups – has revolutionised politics as we know it.
During the 2015 election, the Conservatives spent £1.2m on Facebook advertising, and this year, Labour plan to spend almost the same. Like broadsheets, billboards, and broadcasts before them, Facebook adverts are a powerful tool for spreading a message to the masses. Unlike broadsheets, billboards, and broadcasts, however, Facebook advertising is at present almost entirely unregulated, leading to wide speculation about what exactly is going on.