title: Implementing usage analytics in rails application
body: <p>I want to implement some analytics for my rails web application, e.g.:-</p>
  
  <p>Who's using the app?
  How often they are using?
  What content in the app are the users viewing?</p>
  
  <p>Can anyone please suggest me a Ruby gem or any way to start working on this ?</p>
  
  <p>Thanks </p>