Aggregation

An intentional grouping of content for the purposes of organization or presentation. Aggregations often pull and organization information from an original source: an example is a news feed, which aggregates content based on a pool of articles.

Specific types of aggregations include:

• A hierarchical content tree
• Lists or collections, which are normally just flat, ordered sequences of content
• A category, tagging, or taxonomy system
• A menu, which tends to be hierarchical and often includes non-content items like external links