Providing access via a global information network to a bid submission system through which contactors access bid information and prepare and submit construction bids for commercial real estate projects in office and industrial properties

On-line trading services for real estate and advertising space both residential and commercial in which seller posts their available real estate or advertising space to be auctioned and bidding is done via the Internet, and providing evaluative feedback and ratings of sellers' property and services, the value and prices of sellers' property, buyers' and sellers' performance, delivery, and overall trading experience in connection therewith