Real estate agency services; real estate listing services; real estate brokerage services; real estate listing; providing information about real estate agencies, brokerage, investment, appraisal, procurement,time-sharing, rental and leasing to others; providing information about real estate to others; mortgage lending, mortgage banking, mortgage brokerage, mortgage services, namely mortgage procurement for others and maintaining mortgage escrow accounts, and mortgage and financing services pertaining to real estate; providing information in the field of real estate by linking the web site to other web sites featuring real estate information; real estate management; real estate investment; real estate appraisal; real estate procurement for others; real estate time-sharing; rental of apartments, condominiums, office space and real estate; leasing of apartments, office space, real estate and shopping mall space; and providing information concerning all of the foregoing via the Internet