Infomediary services, namely, facilitating transactions between buyers and sellers through providing sellers with information about buyers' wish for goods, and/or services; Infomediary services, namely, facilitating donations between foundations and charitable organizations and donors through providing donors with information about foundations' wish for goods, and/or services such as volunteers, and/or monetary donations; On-line trading services in which buyer posts goods and/or services that he/she wish to purchase, to be offered by the seller, and the transaction is done via the Internet; On-line trading services in which buyer posts goods and/or services that he/she wish to purchase, to be auctioned by the sellers for the most competitive or economical price and bidding is done via the Internet; On-line trading services in which seller posts products and/or services to be purchased or auctioned by the buyers and the bidding is done via the Internet; On-line auction services; conducting of auction sales