"Supplementary content" refers to additional information or materials that support or enhance the main content. It provides extra details, explanations, examples, or resources to help further understand a concept or topic. Full definition
Unfortunately, that doesn't mean much in the way of supplementary content. (dvdizzy.com)
Here's how: Provide value It's important to post photos and details about your latest property listing online, but providing supplementary content for your clients is also critical. (rismedia.com)
So marketers must build an ongoing relationship that establishes trust with potential buyers, one that includes multiple touch points and supplementary content offers. (ironpaper.com)