ICE Delivery for PRISM (White Paper) 

Context Media Supports PRISM (Cover Pages)

Deadline Duel: A Magazine Drama in Four Acts (Download a humorous PRISM case study)

Filling in the DTD Gaps with Schematron (article in XML.com) by Bob Ducharme discusses applying a Schematron schema to the PRISM Specification.

The History of PRISM (IDEAlliance white paper).

IDEAlliance Working Group Publishes PRISM Aggregator DTD for Online Content (Cover Pages)