This raises a related question. XML coding can change something information professionals wouldn't consider as a document into a document. Data mining, and its close cousin text mining, analyses data and suggests relationships. In the Dynamic generation of online, answers are not of the straightforward 'two plus two equals four' variety. Rather, they are suggestive.
Researchers find things on the periphery of an answer as useful as a definitive answer.
I am not talking merely about rhetoric here. With the Internet, obviously, comes mutability. The Web site you found yesterday isn't there today. Or, it is there, but it doesn't look anything like the one you saw yesterday. Many information professionals decry this Web tendency.