Abstract: Described is a system that enables owners of tangible assets—owned items—to collect, secure and actively manage information about their valuable personal property. A database serves as a secure repository for valuations of owned items and related metadata, e.g., valuation appraisal certifications, item descriptions, locations, manuals, and photographs. These data are accessible by respective members via custom or general purpose user interfaces. The system receives data feeds that deliver information relevant to item valuations, derives updated valuations, and delivers valuation updates to the members.