YouTube made $959 million in ad revenue off children last year, followed closely by Instagram: Harvard study

• Social media companies made more than $11 billion in US ad revenue from kids, a new study found.
• The study suggests the are too many financial incentives at play for the companies to take meaningful action.
• YouTube derived the greatest ad revenue from users 12 and under, according to the study.

Social media companies collectively made over $11 billion in US advertising revenue from minors last year, according to a study from the Harvard T.H. Chan School of Public Health published on Wednesday.