Downloadable computer application software for mobile devices for use exclusively by property managers, namely, software that allows property managers to share inventory across platforms; downloadable computer application software for mobile devices for use exclusively by property managers, namely, software that allows messaging among guests of lodging accommodations owned and hosted by others and among the hosts who list lodging accommodations for rent; downloadable computer application software for mobile devices for use exclusively by property managers, namely, software management tools to permit users to manage, organize, calendar and share with others travel bookings, activity dates, photographs, opinions and preferences; downloadable computer application software for mobile devices for use exclusively by property managers, namely, software management tools to permit users to arrange for temporary lodging check-in help; downloadable computer application software for mobile devices for use exclusively by property managers, namely, software that permits listers of goods, real property and services for rent to receive suggested improvements to their listing advertisements; downloadable computer application software for mobile devices for use exclusively by property managers, namely, software for property rental management; downloadable computer application software for mobile devices for use exclusively by property managers, namely, software that allows users to provide reviews and feedback about listers and renters of real estate, temporary lodging; Computer application software for mobile devices for use exclusively by property managers, namely, software that allows users to make and receive payments for the rental; downloadable computer application software for mobile devices for use exclusively by property managers, namely, software that allows users to search for, temporary accommodation travel information and related topics and for making reservations and, temporary accommodations; downloadable computer application software for mobile devices for use exclusively by property managers, namely, software that allows users to engage in social networking featuring travel, transportation, temporary lodging, and the rental and listing of real estate; downloadable computer application software for mobile devices for use exclusively by property managers, namely, software to facilitate property management for use by vacation property rental managers; downloadable computer application software for mobile devices, namely, software that allows users to engage in social networking featuring travel, transportation, temporary lodging, and the rental and listing of real estate; downloadable computer application software for mobile devices, namely, software to facilitate property management for use by vacation property rental managers. Downloadable computer application software for mobile phones, namely, software for mobile devices for use exclusively by property managers, namely, software that allows users to list and rent temporary lodging, access information, listings and announcements about housing, apartments, condominiums, townhouses, real estate, commercial real estate and rental and leasing advertisements for the foregoing; Downloadable computer application software for mobile phones, namely, software for mobile devices that allows, provides, permits, and facilitates users to communicate with each other, list and rent temporary lodging, access information, listings and announcements about housing, apartments, condominiums, townhouses, real estate, and rental and leasing advertisements for the foregoing, solicit each other to perform a wide range of personal and customized services, housekeeping, cooking and related services, personalized travel, itinerary and private tour and activity services, message among guests of lodging accommodations owned and hosted by others and among the hosts who list lodging accommodations for rent, arrange for temporary lodging check-in help, including the remote exchange of keys to lodgings and for locking and unlocking lodgings, buy and sell goods and/or services, including real property, property rental services, home goods, transportation services, and to arrange for professional photographs of the listed goods/services, make and receive payments for the rental, purchase and sale of goods and services, plan, announce, invite others to attend and evaluate real world meetings and events, provide reviews and feedback about listers and renters of goods and services, real estate, suggested improvements to listings and their advertisements, temporary lodging, transportation, the value and prices of sellers' goods and services, buyers' and sellers' performance, delivery, and overall trading experience in connection therewith, search for travel, transportation, temporary accommodation, travel information and related topics and for making reservations and bookings for transportation, temporary accommodations, provide travel reviews and recommendations for local attractions, engage in social networking featuring temporary lodging, the rental and listing of real estate, travel, transportation, the rental and listing of goods and permit users to manage, organize, calendar and share with others travel bookings, activity dates, photographs, opinions and preferences through management tools