35 Computerized on-line ordering services featuring preprinted forms, stock forms, stock labels, marketing literature, brochures, direct mail advertising, flyers, sell sheets, standard digital marketing literature, customized digital marketing literature, print on demand literature, office forms, shipping and receiving forms, company-wide operational documents, training applications, production forms, department-specific documents, custom laser rolls, custom and stock cut sheet and continuous documents, pressure-sensitive labels, stationery, business cards, envelopes, labels, address labels, tags, notepads, custom imprinted printed matter, custom labels, electronic forms, Product Identification (PID) labels, custom PID labels, Information Systems (ISL) labels and custom (ISL) labels; providing a web site whereby purchasers of custom printing services locate and receive quotations from multiple competitive sources and sellers of custom printing services identify and bid on multiple new sales opportunities; supply chain management services for others in the field of custom printing of preprinted forms, stock forms, stock labels, marketing literature, brochures, direct mail advertising, flyers, sell sheets, standard digital marketing literature, customized digital marketing literature, print on demand literature, office forms, shipping and receiving forms, company-wide operational documents, training applications, production forms, department-specific documents, custom laser rolls, custom and stock cut sheet and continuous documents, pressure-sensitive labels, stationery, business cards, envelopes, labels, address labels, tags, notepads, custom imprinted printed matter, custom labels, electronic forms, Product Identification (PID) labels, custom PID labels, Information Systems (ISL) labels and custom (ISL) labels, and other printed advertising materials, accessed through a web site