Are you using emfluence forms and modals to help grow your list? You should be! One of the easiest ways to help grow your list is to allow people who have found your website to subscribe to your newsletters, offers, or product/service information. Not only feeding your contacts, forms can feed specific groups as well allowing your customers to choose what types of information and offers they would like to hear more about.
Alan Rapp
One of the latest improvements to Query Builder now allows you to query contacts by sent email messages and viewed email messages. This means you now have the ability to create email-specific groups of viewers and non-viewers for follow-up emails.