An electronic commerce system (10) includes a shared product data repository (34) that includes static product data for one or more products. The static product data is associated with dynamic product data stored in one or more seller databases (32). The system also includes a global content directory (42) that includes a plurality of product classes organized in a hierarchy. Each product class categorizes a number of products and is associated with one or more attributes of the products categorized in the product class. At least one of the product classes has one or more associated pointers that identify the shared product data repository (34). The system further includes a search interface (45) that communicates a search query to the shared product data repository (34) to search static product data stored in the shared product data repository (34) identified by one of the pointers. The system (10) also searches dynamic product data that is associated with the static product data and that is stored in one or more seller databases (32).