on-line services, namely, providing merchants, businesses, consumers and other users of a computer network or global communication network with services for mailing, shipping, inventory and tracking of merchandise, including providing postal services, postage, shipping services, address correction services, delivery confirmation services, vendor merchandise policy management, customer service, package tracking, carrier selection, payment options, generation of merchandise and shipping authorization codes, scheduling merchandise pickup, encoding for routing, tracking and inventory of merchandise, and tools for inbound merchandise and data management