Patent ID: 8762364

Claim:
A method comprising: computing, by a computer, an engagement index of a user based on a distribution in time of the user's interactions with a search engine, the engagement index comprising at least a measured frequency of the user's visits to the search engine, a measured recency of the user's visits to the search engine, and a measured intensity of the user's activity at the search engine, the measured intensity is associated with a number of search engine page views by the user, wherein the engagement index equals the measured frequency multiplied by the measured intensity and divided by the measured recency; and presenting, in response to a query by the user, a personalized search results page to the user when the engagement index of the user meets a threshold value, wherein the threshold value indicates that the user is sufficiently engaged with the website to perform personalization and wherein, the personalized search results page for presenting to the user a personalized advertisement layout comprising: a search related content; and at least one advertisement.