Downloadable computer software allowing users to list pre-owned clothing and accessories, footwear, hand tools, electronics, jewelry, musical instruments, leather goods, furniture, housewares, fabrics, travel gear, outdoor gear, cameras and camera accessories, backpacks and other bags, baby products and toys, and sporting goods for resale; downloadable computer software allowing users to purchase pre-owned clothing and accessories, footwear, hand tools, electronics, jewelry, musical instrumen...