Platform as a service (PAAS) featuring computer software platforms for processing electronic payments and tracking payments; software as a service (SAAS) services featuring software for use by others in processing payments; providing a website featuring non-downloadable software for use in property management; providing on-line non-downloadable software for managing and administration of commercial, residential and multifamily real estate segments; providing non-downloadable software for use by others for document management; providing non-downloadable software that enables users to generate, search, access, update, manipulate, modify, organize, store, backup, synchronize, transmit and share emailed data, documents, photographs, files, information and other content via a global computer network; providing non-downloadable software for document management that tags documents with barcodes in order to archive them automatically and for document indexing, search and retrieval, and electronic distribution to printers, fax, email, and archive; providing non-downloadable software for use in creating, displaying, sharing and storing photographs; providing non-downloadable software for conducting and facilitating audits of documents and leases; electronic storage of files and documents; custom design of computer software; design, creation, hosting, maintenance of websites for others; troubleshooting of computer software, website, and mobile software application problems; developing customized web pages featuring user-defined information