Systems and methods for exchanging information about available items are provided. A method that can be performed at a server system includes: receiving media content relating to an available item from an electronic device of a listing user; receiving one or more keyword attributes that define attributes of the available item, the keyword attributes being generated by the listing user; and receiving location data identifying the location of the available item. The method stores the media content, keyword attributes, and the location data of the available item as an item record in an item database. Responsive to an accessing user accessing the server system using an electronic device, the method enables the accessing user to filter item records stored in the item database by the keyword attributes so as to view available items that match the keyword attributes.