A rate card is useful, but an understanding of performance would be more useful; do influencers with smaller audiences deliver more cut-through within target audiences than mass reaching celebrities?

Analysts suggest that is the case: eMarketer predicts budgets will shift away from celebrities this year to smaller influencers as marketers target niches and attempt to reduce wastage on fake followers. Meanwhile, Aussie start-up Tribe has convinced investors and marketers such as Keith Weed that micro is the future.

Klear touts a data science team and crack algorithms to give (presumably paying) marketers that kind of insight.

But then, it also boasts a database of over a billion influencers, suggesting one in seven people on the planet – every man, woman and child - is an influencer. So perhaps some work to do on the numbers.