Abstract: The present invention contemplates a computer-implemented, currency-based method and system for the exchange of goods over the internet. The invention provides and maintains an exchange web site and an overall list of items available for exchange. The exchange provides and maintains a medium of exchange, the units of which are termed ‘flips’, and assigns an exchange value in flips to each item offered for exchange. The exchange also provides and maintains an account for each user. The exchange includes a central computer and a database that maintains a separate library for each user that lists all items offered for exchange by that user, and a separate wish list for each user that lists all items desired for exchange by that user. The central computer analyzes data records input by users to find items that have been offered for exchange by at least one user and are desired for exchange by at least one user.