HIDDEN IN PLAIN SIGHT: Instagram's ads are presented in the same square format using the same "vintage" filter as user-generated pictures, with only the word "sponsored" revealing its true nature.
PARIS: The quandary for those who run social networks is how to monetise activity on them without antagonising and thus losing users through distracting ads?
The answer, for Twitter, YouTube and Instagram, is to slip in some stealthy ads camouflaged to look like posts from listed contacts.
