Providing temporary use of on-line non-downloadable software and applications for managing e-commerce partnerships, syncing and tracking product catalogs, inventory, payments, invoices, shipments, and orders between online retailers, partner stores and suppliers; Providing temporary use of on-line non-downloadable software and applications for allowing users to perform business management via a global computer network, namely, database management, sales and customer tracking and inventory management; Providing temporary use of on-line non-downloadable software and applications for processing bills and payments