We classify website visitors into two categories: known and unknown. An unknown user is someone who has never visited your site before or who has never signed up for your free email newsletter. It is imperative that your content management system has the capability to differentiate between known users and unknown users. This way, you can appropriately display your unknown users with OFIEs, OFINs and floaters for free products that are designed to capture the user’s email address.
Once the unknown user hands over their email address, they become a known user. Now you would use OFIEs, OFINs and floaters to promote paid products.