Auction management services provided to others over an on-line web site accessed through a global computer network; Business management assistance and particularly carrying out tasks necessary for the smooth conduct of sales by auction; On-line consignment services whereby goods are received on consignment for auction on an online auction site; On-line trading services in which seller posts products to be auctioned and bidding is done via the Internet; Online auction bidding for others; Online auction services; Online business networking services; Online tracking for others of service contracts for residential appliances and consumer goods; Operating on-line marketplaces for sellers of goods and/or services