16. The non-transitory computer storage medium of claim 14 , which further causes the computer to perform further operations comprising: storing a plurality of authority signature values in a database; and retrieving and displaying information regarding one or more authors from the database having a predetermined rank or authority signature value for a query topic in response to a request regarding the query topic.
16. The non-transitory computer storage medium of claim 14 , which further causes the computer to perform further operations comprising: storing a plurality of authority signature values in a database; and retrieving and displaying information regarding one or more authors from the database having a predetermined rank or authority signature value for a query topic in response to a request regarding the query topic. 17. The non-transitory computer storage medium of claim 16 , which further causes the computer to perform a further operation comprising: outputting information regarding one or more users with highest ranked authority signature values for the query topic.