Advertising of commercial or residential real estate; Promoting the goods of others by means of on-line real time presentation for inspection, viewing or showing of real estate; Providing an interactive real estate web site which promotes housing and apartment properties through offering prospective tenants video walk through, property descriptions, text, price, location, maps and other information that would be influential to a prospective tenant in making a rental decision; Providing real estate leads for prospective purchasers; Providing real estate video tours for marketing purposes; Real estate advertising services; 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