Providing a web site at which users can offer skills, goods and services in exchange for skills, goods and services offered by others, including real-time bartering capabilities; providing a web site for on-line exchange between businesses, and companies; business services, namely, providing an exchange service for businesses and companies; providing an on-line searchable database featuring listings for skills, goods and services offered in exchange for skills, goods and services of others; and exchange services, namely, bartering of skills, goods and services for others