Providing temporary use of on-line non-downloadable software and applications for use in organizing, servicing and tracking sales, collections and receivables data, all in the field of accounting and patient management; Providing temporary use of on-line non-downloadable software for accounting; providing temporary use of online non-downloadable software for creating and managing invoices, recording payments, and issuing receipts; Software as a service (SAAS) services featuring software for communications, namely, software for enabling transmission of emails to clients and patients, for use in sending instant messages and text messages to clients and patients and for sending newsletters to patients and clients; Software as a service (SAAS) services featuring software for creating and managing invoices, recording payments, and issuing receipts; providing temporary use of online non-downloadable software for customer relationship management; software as a service (SAAS) services featuring database software for use in patient management and inventory control of eyewear and eyewear accessories