Updated information presenting software creates a list of information
source URLs provided with the index of importance determined by the
frequency of access to the referring URLs in the past, and selects an
information source URL with a high index of importance by an information
source URL sorting section, and obtains data from a server computer by a
network file access section. A file comparing section detects whether the
contents of the data have been updated, and, when a tag information
change detecting section detects a new link and a changed anchor
character string, an output formatting section creates output HTML which
displays the new link and the changed anchor character string together
with the information source URLs in order of the index of importance and
supplies the output HTML to a browser.