1. A web site search and selection method in which, in response to a search query, a relevance score is assigned to each page of the web sites addressed by the search engine, characterised in that, for each web site addressed by the search engine, the relevance scores of the individual pages are added together, after weighting them by a correction factor indicative at least of the number of pages of the site itself, so as to obtain, in response to the search query, an overall relevance value for the sites addressed by the search engine.