17. The apparatus of claim 13, wherein the term-score is a relative document frequency.
13. An apparatus for facilitating skimming of a document by a user, the document having a plurality of terms, the apparatus comprising: a processing system that determines a term-score for each of the plurality of terms and that maps the term-score of each of the plurality of terms onto one of at least three values of at least one variable emphasis attribute usable to present the document; and a presentation system that presents each of the plurality of terms of the document using the corresponding mapped values of the at least one variable emphasis attribute.