A seller device executing a seller module captures an image of an item available for purchase and uploads the image to a host machine. The host machine receives the image of the item and provides the image and a seller address to a buyer device. The buyer device executing a buyer module presents the image and the seller address to a user. The seller address is usable to initiate a communication with the seller of the item. The host machine may provide the seller module to the seller device, and the host machine may provide the buyer module to the buyer device. The host machine may also communicate the image to an advertisement server configured to publish the image as a listing of the item.