(1) page 8, ln 15 - page 9, ln 1 - Content Provider's list: This is a list (associated with each key-word) of content providers which must typically that pay to illustrate content with the key-word. The price paid is dependent on the number of other content providers, the amount they spend and the number of times the key word is searched for. Input data set Output data set * Key-word Content Providers list-a list of content * Content Provider's bids for content spots associated with each key-word (permanent) (2) page 45, ln 16-31 - The key-word suggester can also help content providers choose key-words or sets of key-words that they would like to display. Controlling the search engine system There are a number of parameters that can change the way in which the search engine according to the present invention ranks web pages. These factors (described in detail below) are: History factor This determines the rate of decay of the existing popular lists (popular hit list) as described in the text previously. This is a number between 1 and 0. A high history factor will make it difficult to change the existing popularity lists. As an example if the rate of searching for a particular keyword is increasing quickly, then the history factor should be lower to enable emerging web pages to rise up the popularity list. Frequency of updating Table 3 from the cumulative surfer trace This is a measure of the frequency with which the popularity lists are updated with information about the users'activities (i. e. the surfer trace), for example, this may be measured once a day or even once a month depending on the rate of change of popularity of particular keyword searches.