35 Promoting the goods and services of others by providing hypertext links to the websites of others featuring real estate, apartments, residential rentals, builders, and architects; advertising and marketing services in the fields of real estate, apartments, residential rentals, builders, and architects; real estate marketing services, namely, on-line services featuring tours of real estate; providing an on-line showroom for the goods of others in the field of real estate, apartments, residential rentals, builders, and architects; operating on-line marketplaces for sellers and buyers of services in the field of real estate, apartments, residential rentals, builders, and architects; providing an on-line commercial information directory on the Internet; providing commercial information on the Internet in the field of real estate, apartments, residential rentals, builders, and architects; providing on-line trade directory services featuring hypertext links to the websites of others; design of advertising materials for others; design of internet advertising; on-line advertising and marketing services