Abstract: The present invention relates generally to systems and methods for marketing products where the products are part of a product family having application dependent uses and where substantially improved product performance occurs when the product is properly selected for a given application. The systems and methods include offering the products in the product family to users and providing a web site to aid users in selecting the correct product. Additionally, the systems and methods include receiving a solicitation for advice at a web site to select the proper product for a given application from a client computer, processing the solicitation for advice, formulating advice selecting a preferred product based on the processing, and providing advice on the preferred product to the client computer.