A California-based alternative medicine doctor has used a combination of direct mail, local space advertising and live events to recruit doctors to open franchises around the country.

Gone are the days when a call center merely existed to take orders and maybe upsell a caller on additional products or services. Today's call center is integrated with online customer service and social media channels to develop and nurture customer relationships.

Just as marketers are always looking to new vehicles for expanded communication delivery, so too do we need to start looking at new ways of expanding the almost limitless possibilities of our data and appending procedures. Here's a primer on three ways you can add value to your list with appended data.