1. A method for transmitting information representative of scanned machine-readable codes between network sites, comprising: a) receiving, at a first site, information associated with one or more scans of machine-readable codes made by an end-user; b) storing, at a database associated with the first site, the information associated with one or more scans of machine-readable codes in a data record having a unique alpha-numeric identifier associated therewith; c) directing the end-user from the first site to a second site with a URL that includes both a symbol identifying an address of the second site on the network and the unique alpha-numeric identifier associated with the information stored at the first site; d) receiving, at the first site, a request signal from the second site for the information stored at the first site, wherein the request signal includes a representation of the unique alphanumeric identifier; and e) sending the stored information from the first site to the second site in response to the request signal.