on-line trading services, namely, providing a web site where others post products or services for trade or sale via the Internet, and where users can offer goods or services for trade or sale and buy or trade goods or services offered by others via a computer network; providing customer support services in the field of online customer account management and catalog ordering services featuring collectibles; providing a web site promoting the goods of others for the purpose of facilitating buying, selling and trading transactions between third parties; electronic on-line catalog services featuring collectibles; carrying out tasks necessary for the smooth conduct of on-line transactions, namely, providing inventory management in the field of collectibles, providing customized consumer product information for products on consumers wish lists, historical pricing and current fair market value pricing; on-line inventory management services in the field of collectibles; infomediary services, namely, facilitating wireless, mobile and telephonic buy, sale or trade transactions between buyers and sellers through providing buyers with information about sellers, goods, and/or services