1. A computer-implemented method for finding data related to the contents of a document using a computer program running on a computer, the method comprising: analyzing, in a computer process, the document to identify any first information that can be searched for in order to find second information related to the first information; retrieving the first information thus identified; following receipt by the computer program of a user command, searching for the first information, using a second computer program, in order to find second information related to the first information; and if searching finds any second information related to the first information, performing an operation using the second information.