1. A method of determining a set of well-formed hyperlinked documents based upon an analysis of the links between and structure of documents within a larger set of hyperlinked documents, said well-formed hyperlinked documents being authorities on a specified topic, said method comprising: obtaining a base set of hyperlinked documents containing documents relevant to said specified topic and documents which are authorities on said specified topic; determining a structure score for each document within said base set; setting an authority weight and a hub weight of each document equal to said document's corresponding structure score; for each document, updating said authority weight of the document to equal a sum of hub weights of all documents within said base set pointing to the document; for each document, updating said hub weight of the document to equal a sum of authority weights of all documents within said base set the document is pointing to; identifying a predetermined number of documents having the highest valued authority weights as said authorities on said specified topic.