Abstract: An electronic bartering system which associates each user with at least one community and enables users to create their own communities. Each user can specify at least one barterable item in a wish list and at least one barterable item in a trade list. Within a given community, the system periodically compares the wish lists and trade lists only of users within the community in order to identify a trade match. When a match is identified, an e-mail message is sent to users advising of the trade match. The system also receives confirmation from the users accepting or rejecting the trade match.