Promoting the goods and services of others by providing a web site featuring coupons, rebates, price-comparison information, product reviews, links to the retail web sites of others, and discount information; Promoting the goods and services of others by providing a web site featuring links to indoor mapping and indoor navigation; Providing consumer information in the field of indoor mapping and indoor navigation via a website; Providing consumer information via a website; Providing a searchable on-line advertising website and guide featuring the goods and services of other vendors via the Internet; Providing business information via a web site; Providing business information via a website; Providing commercial information in the field of indoor mapping and indoor navigation via a website; Providing marketing information via a website; Providing on-line web directory services featuring hyperlinks to the websites of others; Provision of a web site featuring commercial information on shopping