System and method for analyzing usage patterns in information aggregates

System and method for evaluating an information aggregate. A metrics database stores document indicia including document attributes, associated persons and usage metrics. A query engine collects a plurality of documents having non-unique values on a shared attribute into an information aggregate and tracks usage metrics with respect to the documents. A visualization engine visualizes the usage metrics with respect to a single aggregate, or as a composite or comparison of usage metrics for a plurality of aggregates.