The present invention relates to information search method and system aggressively using comments written by users who have appreciated content. An object of the invention is to display a search result, which is sorted by a proper ranking, in response to a query including an emotional word. For that purpose, while a search database is constructed, firstly emotional words are extracted from the comments and categorized. Next, impressions, or metadata about content are organized from them. Finally the metadata and information about the content are stored. Afterwards, when a user enters a search query including an emotional word, firstly emotional words and non-emotional ones are extracted from the query. Next, content relevant to the non-emotional word is found. Lastly, a ranking result is adjusted according to 'checked/unchecked' values (or scores) of an impression item, which matches the emotional word, of the found content.
METHOD AND SYSTEM FOR SEARCHING INFORMATION OF COLLECTIVE EMOTION BASED ON COMMENTS ABOUT CONTENTS ON INTERNET