People use each social network very differently. On a very basic level, Instagram is for photo-sharing, Twitter is for posting news and pop culture content, Pinterest is for design, and Facebook is for everything in between.
The different ways people use social networks also heavily impacts the kinds of data these sites collect on users. This then informs the kind of hyper-targeted content served back to users from friends, publishers, or advertisers.
In a recent report from BI Intelligence, we take a close look at the kinds of information each of the biggest social networks collects on its users, and how that data fits into the overall strategy of each network.