Instagram is expected to make up 5% of Facebook mobile ad revs
According to a recent study by eMarketer, Facebook made $10 in ad revenue for each global user in 2014, compared to Twitter who made $5.5. The research found that global social network spending will reach $25bn in 2015, this is up from the April forecast of $23.7bn. Emarketer also predicts that Instagram will account for 5% of Facebook's worldwide mobile ad revenue in 2015, making $600m, a figure that is expected to rise to $1.5bn in 2016. 

Facebook pulled in $10.03 in ad revenue for each global user in 2014, compared with $5.48 for Twitter, according to a recent study by eMarketer .

eMarketer pegged the average ad revenue per U.S. user at $34.68 for Facebook and $17.06 for Twitter in 2014, while non-U.S. users brought in $6.25 and $2.37, respectively.

The researcher sees global social network ad spending reaching $25.14 billion in 2015, up from the April forecast of $23.68 billion, adding that it projects Facebook’s 2015 global ad revenues at $16.29