Advertising of commercial or residential real estate; Arranging, planning, and conducting tag sales, estate liquidation sales, yard sales or garage sales for others; Estate management, namely, assistance in the gathering and organization of personal vital and financial records in conjunction with instructions for handling of such documents by others, including executors and attorneys, upon death or when otherwise necessary; Matching consumers with real estate professionals in the field of real estate services via computer network; Matching potential buyers to facilitate co-ownership of residential real property; Membership club services providing discounts to members on real estate commissions and mortgage fees; Negotiation and renegotiation for others of leases and subleases and real estate purchase agreements; Providing a database featuring real property tax information; Providing an interactive real estate website which promotes housing and apartment properties through offering prospective tenants video walk throughs, property descriptions, text, price, location, maps and other information that would be influential to a prospective tenant in making a rental decision; Providing interactive sales assessment services via the telephone for measuring the skills and knowledge of field sales forces in real world selling situations; Providing real estate leads for prospective purchasers; Providing real estate video tours for marketing purposes; Real estate advertising services; Real estate auctions; Real estate marketing analysis; Real estate marketing services, namely, on-line services featuring the promotion of residential new construction, which also contains back office solutions for builders; Real estate marketing services, namely, on-line services featuring tours of residential and commercial real estate; Real estate sales management