Interesting article in today's Telegraph:
www.telegraph.co.uk/technology/2018/04/21/influencer-economy-world-celebrity-instagram-endorsements-attracting/
'Influencers' are attracting increasing scrutiny from regulators, but, as the article notes:
'A separate challenge may loom for the industry. By going directly to influencers, advertisers are bypassing ad-funded social networks such as Instagram and Snapchat, with whom they might have otherwise spent their money. If the rise of the influencers continues, they may ruffle more than just regulators’ feathers.'