Abstract: A web site server computer runs a computer software program which provides a web site, which is configured so that a first user can become a member of the web site by use of a first user computer. The web site can accept a first set of data uploaded from the first user computer to the web site. The web site sends an alert from the web site server computer to a second user computer of a second user, wherein the alert specifies that the first set of data can be downloaded to the second user computer if an agreement is entered into between the first user and the second user. The web site accepts an indication that the agreement has been entered into between the first user and the second user, and if the agreement has been entered into, the web site allows the second user to download the first set of data from the web site server computer to the second user computer.