Facebook Insights
Facebook provides a wealth of data through it's Insights page. In fact there is simply too much there sometimes to make sense of.
Website Monitor can also capture this data, as with other sources you need to grant Website Associates access to your Facebook Insights data. Rest assured the only access we have is to the anonomised data.
We can merge Facebook data with all your other digital profile data. One problem is that Facebook and Google are like pears and apples, they are each measuring something slightly different. Nevertheless comparisons can be made and for any given profile it is the relative trends that count.
Some businesses can operate entirely on Facebook, it depends on the business.