Downloadable computer software for use in accessing customized airfare and flight information and for notifying users of changes in such information; downloadable mobile applications for use in accessing customized airfare and flight information and for notifying users of changes in such information; Downloadable computer software for use in accessing travel lodging information over global computer networks and for providing temporary lodging listings and information, and for making reservations and bookings for temporary lodging; downloadable mobile applications for use in accessing travel lodging information over global computer networks and for providing temporary lodging listings and information, and for making reservations and bookings for temporary lodging