42 Installation of computer software, supporting software, and necessary database applications and data on a server designated by the customer; graphical user interface customization, software performance customization, and database customization; development of on-line applications that gather, store, and use data submitted from various sources; search engines for obtaining data located on an intranet or the Internet; providing temporary use of on-line Internet, intranet, and extranet non-downloadable software which accesses databases containing self-paced courseware and tutorials, student transcript and course progress information, bulletin board systems, registration for classroom courses, and pre-selected resources including other web sites, on-line periodicals, documents, frequently asked questions, and books in the areas of environmental safety and occupational health, facility management, forensic science, federal acquisition, banking, finance, higher education, namely, pharmaceutical, health care, manufacturing, agriculture, and business management, and which tracks course progress and course completion records; providing computer software design and database design and computer software maintenance services for others on an existing limited computer network infrastructure; designing, maintaining, and implementing web sites for others; custom software development featuring database driven applications that enable owners of the non-downloadable software to configure site settings including users, access rights to certain functions or content, internal organization, structure, and available content; developing and providing virtual computer systems and virtual computer environments through cloud computing; developing and providing e-commerce software to allow users to perform electronic business transactions via a global computer network; developing and providing an interactive web site featuring technology that allows users to manage and use social networks, accounts, and connections to existing and emerging application programming interfaces (APIs); developing and providing customized on-line web pages and data feeds featuring user-defined information, which includes blog posts, new media content, other on-line content, and on-line web links to other websites