An Audience BlockTM is a collection of Facebook demographics, behaviors, or interests that collectively embody a single coherent aspect of a persona that can be targeted. Tapcast often also refers to them as dimensions.
For example, combining Facebook interests “Carnival Cruise Lines,” “Norwegian Cruise Line,” and other cruise companies into a single Block called “Cruise enthusiast” might make sense. But lumping together the “Fashionista,” “Fast food,” and “Fast food restaurants” interests might be difficult to justify as a single coherent dimension or Block.
Tapcast has curated a number of Blocks and made them available for you in Audience Builder as Tapcast Blocks. You may also recognize them as the dimensions from Audience Map.
Audience Builder also allows you to create your own Custom Blocks that you can tailor to suit your particular business and targeting needs.