8. The model of claim 7 , the probability formulated as: 
 Pr(Information Value|E 1 ,E 2 , . . . E J ); wherein Pr is the probability, Information Value relates to an importance of the site and topic to the user given evidence E relating to attributes of information importance, and J being an integer.
8. The model of claim 7 , the probability formulated as: 
 Pr(Information Value|E 1 ,E 2 , . . . E J ); wherein Pr is the probability, Information Value relates to an importance of the site and topic to the user given evidence E relating to attributes of information importance, and J being an integer. 9. The model of claim 8 , the evidence includes a web page visited.