Abstract: A commerce system has a plurality of retailers offering products for sale. Product information associated with the products is collected and stored in a central database. A consumer uses a website to create a shopping list with weighted preferences for product attributes. An individualized discount is generated by a consumer service provider for products on the shopping list directed to the consumer. The shopping list with all products aggregated for one retailer is optimized based on the product information in the database, the weighted preferences for the product attributes, and the individualized discounts. The consumer uses the optimized shopping list to assist with purchasing decisions. An incremental profit can be determined based on an aggregation of the products on the optimized shopping list. Purchasing decisions within the commerce system are controlled by enabling the consumer to select the products for purchase from the retailer.

Abstract: Product information associated with products is stored in a database. A website is provided. An interface is provided on the website for generating a shopping list including product attributes. An interface is provided on the website for adding product attributes to the shopping list by searching the product information in the database by product category or keyword phrase. An interface is provided on the website for adding product attributes to the shopping list using natural language descriptions. A list of recommended products is generated based on the product attributes. A price for each of the recommended products between retailers is compared. The purchasing decisions within the commerce system are controlled by generating a shopping option based on the price for each recommended product between retailers. An interface is provided on the website to substitute one of the recommended products with an alternate product.

Abstract: Product information associated with products is stored in a database. A website is provided. An interface is provided on the website for generating a shopping list including product attributes. An interface is provided on the website for adding product attributes to the shopping list by searching the product information in the database by product category or keyword phrase. An interface is provided on the website for adding product attributes to the shopping list using natural language descriptions. A list of recommended products is generated based on the product attributes. A price for each of the recommended products between retailers is compared. The purchasing decisions within the commerce system are controlled by generating a shopping option based on the price for each recommended product between retailers. An interface is provided on the website to substitute one of the recommended products with an alternate product.

Abstract: A commerce system has retailers offering products for sale. Product information associated with the products is collected and stored in a central database. A consumer uses a website to select preferred retailers on a map. A plurality of product categories is presented on the website. A plurality of product attributes for the product categories is presented on the website. A weighting factor is provided for the product attributes. A shopping list is generated for the consumer based on the product information, product attributes, and weighting factors. The shopping list has an individualized discount directed to the consumer for a product on the shopping list. The shopping list is provided to the consumer to assist with purchasing decisions. A trip plan is generated for the consumer. The purchasing decisions within the commerce system are controlled by enabling the consumer to select the products for purchase from the retailer.

Abstract: A commerce system has retailers offering products for sale. Product information associated with the products is collected by retrieving the product information from a website of the retailer through a consumer computer system and by confirming and updating the product information, including per unit pricing and price multiples, through electronic communication with the consumers while in a store of the retailer. The product information is stored in a database. A website is provided for consumers to create a shopping list with weighted preferences for product attributes. The shopping list is optimized based on the product information in the database and the weighted preferences for the product attributes. The optimized shopping list is made available to the consumer to assist with purchasing decisions. The purchasing decisions within the commerce system are controlled by enabling the consumers to select the products for purchase based on the optimized shopping list.

Abstract: A commerce system has a plurality of retailers offering products for sale. Product information associated with the products is collected and stored in a central database. A consumer uses a website to create a shopping list with weighted preferences for product attributes. An individualized discount is generated by a consumer service provider for products on the shopping list directed to the consumer. The shopping list with all products aggregated for one retailer is optimized based on the product information in the database, the weighted preferences for the product attributes, and the individualized discounts. The consumer uses the optimized shopping list to assist with purchasing decisions. An incremental profit can be determined based on an aggregation of the products on the optimized shopping list. Purchasing decisions within the commerce system are controlled by enabling the consumer to select the products for purchase from the retailer.