Computer application messaging software for mobile phones, portable media players, and handheld computers, namely, software that allows users to send messages among guests of lodging accommodations owned and hosted by others and among the hosts who list lodging accommodations for rent and sale; computer application software for mobile phones, portable media players, and handheld computers, namely, software that allows users to plan, announce, invite others to attend and evaluate meetings and events; computer application software for mobile phones, portable media players, and handheld computers, namely, software that allows users to solicit each other to perform a wide range of personal and customized services, namely, housekeeping, cooking, personalized travel itineraries and tours; computer application software for mobile phones, portable media players, and handheld computers, namely, software that allows users to arrange for the remote exchange of keys to lodgings, homes and vehicles and for locking and unlocking lodgings homes and vehicles; computer application software for mobile phones, portable media players, and handheld computers, namely, software management tools to permit users to manage, organize, calendar and share with other's travel bookings, activity dates, photographs, opinions and preferences; computer application software for mobile phones, portable media players, and handheld computers, namely, software management tools to permit users to arrange for temporary lodging check-in help; computer application software for mobile phones, portable media players, and handheld computers, namely, software that permits those who list goods, real property and services for rent or sale to receive suggested improvements to their listing advertisements; computer application software for mobile phones, portable media players, and handheld computers, namely, software that permits those who list goods, real property and services for rent or sale to arrange for professional photographs of the listed goods, property and services; computer application software for mobile phones, portable media players, and handheld computers, namely, software to facilitate the sale of goods and services by others via a computer network and to provide evaluative feedback and ratings of sellers' goods and services, the value and prices of sellers' goods and services, buyers' and sellers' performance, delivery, and overall trading experience in connection therewith; computer application software for mobile phones, portable media players, and handheld computers, 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; computer application software for mobile phones, portable media players, and handheld computers, namely, software that allows users to provide reviews and feedback about listers and renters of real estate, temporary lodging, transportation, sharing of vehicles and rides and temporary parking; computer application software for mobile phones, portable media players, and handheld computers, namely, software that allows users to make and receive payments for the rental, purchase and sale of goods and services; computer application software for mobile phones, portable media players, and handheld computers, namely, software that allows users to search for travel, transportation, temporary accommodation, vehicle and ride sharing and temporary vehicle parking listings, travel information and related topics and for making reservations for the aforementioned; computer application software for mobile phones, portable media players, and handheld computers, namely, software that allows users to provide travel reviews and recommendations for local attractions; computer application software for mobile phones, portable media players, and handheld computers, namely, software that allows vehicle owners and users to list, arrange and reserve shared vehicles and rides; computer application software for mobile phones, portable media players, and handheld computers, namely, software that allows users to list, arrange and reserve temporary parking of vehicles at residences and businesses; computer application software for mobile phones, portable media players, and handheld computers, namely, software that allows users to list and book car sharing, ride sharing and temporary parking; computer application software for mobile phones, portable media players, and handheld computers, namely, software that allows users to access information and listing of peer-to-peer transportation; computer application software for mobile phones, portable media players, and handheld computers, namely, software that allows users to engage in social networking featuring travel, transportation, temporary lodging, shared vehicles and rides, temporary parking and the rental and listing of real estate