Real estate brokerage; Real estate brokerage of Residential property; Real estate agency services; Real estate agency services for the purchase or sales of buildings; Real estate agent services; Real estate consultancy rendered in virtual environments; Real estate consultation; Real estate listing; Real estate listing services for housing rentals and apartment rentals; Real estate management; Real estate management consultation; Real estate management services; Real estate multiple listing services; Real estate procurement for others; Commercial and residential real estate agency services; Lease of real estate; Leasing of real estate; Online real estate brokerage rendered in virtual environments; Online real estate brokerage services rendered in virtual environments; Providing real estate listings and real estate information via a website; Providing real estate listings and real estate information via the Internet; Providing real estate listings via the Internet; 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; Rental of real estate; Residential real estate agency services; Valuations in real estate matters