John O. Biderman is an Information Architect at Harvard Pilgrim Health Care, a non-profit health insurance company in New England, headquartered in Wellesley, Massachusetts. At HPHC, with colleague Cameron McLean of World Class Objects, he has implemented Semantic MediaWiki in a specific knowledge-sharing application: presentation of definitions and meta-data about an Enterprise Data Warehouse for collaborative annotation by business users. Presentations about this implementation include the following: