Intelligent natural language understanding services using cloud-based software technology; Providing subscription-based temporary use of non-downloadable cloud-based software for accessing cloud services and products; Providing temporary use of on-line non-downloadable cloud computing software for learning; Providing virtual computer environments through cloud computing; Providing virtual computer systems through cloud computing; Provision of virtual computer environments through cloud computing; Software as a service (SAAS) services in the nature of hosting cloud-based software of others