Providing temporary use of a web-based software application for identifying and defining the scope and components of projects; providing temporary use of a web-based software application for providing an online marketplace for buyers and sellers of goods and/or services on a global computer network; Providing temporary use of a web-based software application for providing a two-way system for users of an online marketplace to evaluate and provide feedback regarding parties they have interacted with via the online marketplace; Providing temporary use of web-based software application that allows users of mobile phones, portable media players, handheld computers and related mobile devices to solicit each other to perform a wide range of personal and customized services