One Facebook 'like' all advertisers need to target you

Researchers from Cambridge University and New York's Colombia Business School ran fake ad campaigns after realising it was possible to guess psychological traits based on a single like.

Facebook ad campaigns created by British and US researchers have targeted millions of people based on a single 'like'.Scientists used whether people liked certain pages to figure out their personality type, showing the effect of 'mass psychological persuasion', the researchers said.They found that people who like specific Facebook pages, such as Lady Gaga's, are more likely to be outgoing and confident.People who like other items, such as the official page for the Sci-Fi TV show Stargate, are...