1. A system including a computer-readable storage medium having instructions recorded thereon which are executable in a computer, comprising: a user selection record particular to each user of a website which records, for a number of different users, a number of times various menu options from a default menu structure of the website have been selected by each of the different users, a group navigation record which records a measurement of a correlation between different menu options determined as a function of the number of times each menu option has been selected by different users that have selected both, as recorded by the user selection record particular to each user of the website; and wherein the system is operable such that provided, as at least one additional menu option for a particular menu page of the website, is at least one link which is correlated with, as determined by a navigation pattern measurement recorded in a user group navigation pattern record, at least one menu option present on the particular menu page other than through the navigation pattern measurement, whereby the system is operable such that a hierarchical menu structure presented via the website is modified to include the additional menu option on the particular menu page of the website.