Operating on-line marketplaces featuring earth moving equipment, air compressors, pumps, sand-blasting apparatus, generators, office trailers, scaffolding, winches, bulldozers, conveyors, mechanical and hydraulic lifts, tunneling equipment, concrete trucks, tractors and cranes used in the construction industry, cranes, mobile cranes, excavators, pumps, dump trucks, and earth moving equipment used in civil engineering, cranes, boats and barges used in the marine construction industry as well as cranes, mobile cranes, excavators, dump trucks, generators, light towers, drilling rigs, office trailers, welding equipment, well drilling machines and earth moving equipment used in the oilfield industry; provision of an on-line marketplace for buyers and sellers of goods