42 Computer programming and consulting services for the implementation and modification of computer software for use by particular buyers and sellers; providing information to buyers for ordering goods and services in a wide variety of fields by means of corporate-wide, local, national and world-wide computer information networks; providing services to buyers and sellers for ordering goods and services in a wide variety of fields by means of corporate-wide, local, national and world-wide computer information networks including the routing of transactions and orders and enabling conversion of order, content, and transaction information into a variety of protocols and formats; and maintaining and developing online catalog content for sellers by means of corporate-wide, local, national and world-wide computer information networks