Classified real estate listings of apartment rentals and housing rentals; Commercial and residential real estate agency services; Providing a database of information about residential real estate listings in different neighborhoods and communities; Providing a database of residential real estate listings within neighborhoods and communities specifically identified by users; Providing an Internet website portal offering information in the fields of real estate concerning the purchase and sale of new and resale homes and condos; Providing information in the field of real estate by means of linking the web site to other web sites featuring real estate information; Providing information in the field of real estate via the Internet; Providing real estate listings and real estate information via the Internet; Providing real estate listings via the Internet; Real estate brokerage; Real estate consultancy; Real estate consultation; Real estate listing; Real estate listing services for housing rentals and apartment rentals; Real estate multiple listing services; Real estate procurement for others; Real estate rental services, namely, rental of residential housing; Real estate services, namely, property management services for condominium associations, homeowner associations and apartment buildings; Real estate services, namely, rental of vacation homes; Real estate services, namely, rental of vacation homes, condominiums, cabins, and villas using pay per click advertising on a global computer network; Residential real estate agency services