Matching user provided representations of items with sellers of those items

A non-transitory computer-readable storage medium storing instructions, the instructions when executed by a processor causing the processor to at least:

• receive an image from a user of a management service;
• process the image to identify one or more items represented in the image, including a first item;
• generate item information for each of the one or more items represented in the image;
• associate the image with an item category based at least in part on the item information;
• determine a plurality of potential sellers of the first item represented in the image;
• request from each of the potential sellers a confirmation as to whether the first item is offered for sale;
• receive a confirmation from a seller of the plurality of potential sellers confirming that the seller offers the first item for sale;
• associate the image with the seller;
• and
• subsequent to associating the image with the seller:
• receive a request from a second user to view the image;
• and
• present the image and a purchase control to the second user, wherein the purchase control enables purchase by the second user of the first item represented in the image from the seller.

A computing system, comprising one or more processors and a memory coupled to the one or more processors, the memory storing program instructions that, when executed by the one or more processors, cause the one or more processors to perform a method comprising:

• receiving item information from a first seller, the item information including one or more items offered for sale by the first seller, including a first item;
• storing the item information from the first seller in an item catalog data store;
• receiving, from a first user, a first image that includes a representation of an item, wherein the first user and the first seller are different;
• comparing the first image with the item information for the first item;
• determining, based at least in part on the comparison, that the item represented in the first image corresponds with the first item offered for sale by the first seller;
• associating the first image with the first item;
• and
• presenting to the first user the first image, an identification of the first seller, and a purchase control that is selectable by the first user to initiate a purchase of the first item from the first seller.