Does anyone know how to track the behavior of people logged in (subscribers) vs. non-subscribers?

Adding to this -- in Google Analytics or within TownNews?

Added to template

function getUserDetails(){

                var userData = {'loggedIn': false, 'screenName': 'none'};

                    if (TNCMS.User.isLoggedIn() == true){

                             userData.loggedIn = true;

                              userData.screenName = TNCMS.User.getScreenName();

                       };

               return userData

};

Sorry-

I am a bit less technical, where would we put this, and where would we get this data?  

Scott,

Since your sites are using Google Tag Manager, you can pass first party cookie variables in GTM to Google analytics as custom dimensions to identify statistics related to logged in users and subscribers. Please create a support ticket with our customer service folks and they can help you with that.

Here is the link to the support page - https://townnews.com/support/