Providing temporary use of non-downloadable cloud-based software for use in maintaining patient records and for health diagnostic services; providing a web site featuring temporary use of non-downloadable software allowing web site users to upload, post and display data, videos and images for sharing with others for medical purposes; providing temporary use of a non-downloadable web application for use in maintaining patient records and for health diagnostic services; providing on-line, non-downloadable, Internet-based software applications for maintaining patient records, health diagnostic services, and medical billing for physicians and health care institutions