42 Providing online, non-downloadable computer software for mobile devices, smartphones, tablet computers and portable computers, for providing an online booking platform for searching, reserving and renting private aircrafts; providing online, non-downloadable computer software for making on-line private aircraft reservations in the travel industry; providing online, non-downloadable computer software that allows, provides, permits, and facilitates users to list and rent private aircrafts, to access information, listings and announcements about private aircrafts and rental and leasing advertisements for the private aircrafts, to message among travelers using the private aircrafts owned and rented by others and among the owners who rent and lease private aircrafts, to make and receive payments for the rental of private aircrafts, to provide reviews and feedback about listers and renters of private aircrafts, and suggested improvements to listings and their advertisements, to engage in social networking featuring private aircrafts, and the rental and listing of private aircrafts, and to permit users to manage, organize, calendar and share with others travel bookings, activity dates, photographs, opinions and preferences through management tools; providing temporary use of web-based messaging software applications and software as a service (SAAS) services featuring software that allows mobile phones, portable media players and handheld computers to list and rent private aircrafts, to access information, listings and announcements about private aircrafts and rental and leasing advertisements for the private aircrafts, to message among travelers using the private aircrafts owned and rented by others and among the owners who rent and lease private aircrafts, to make and receive payments for the rental of private aircrafts, to provide reviews and feedback about listers and renters of private aircrafts, and suggested improvements to listings and their advertisements, to engage in social networking featuring private aircrafts, and the rental and listing of private aircrafts, and to permit users to manage, organize, calendar and share with others travel bookings, activity dates, photographs, opinions and preferences through management tools