Lathrop, Lori M.
Boulder Writers Alliance
Printed indexes were the precursors to hypertext links. If you have good indexing skills, you can apply those skills to writing indexes for either printed books or online documents. Although locator systems are different in electronic media than in printed books, the basic principles of indexing apply to both online documents and back-of-the-book (b-o-b) indexes. Most online indexes look very much like b-o-b indexes; however, because online information is not linear, the biggest difference is that hypertext links in online documents serve the same purpose as See and See also cross-references in b-o-b indexes. Another difference is that most indexes for online documents use just one or, at the most, two levels of index entries--that is, main headings and subentries, but no sub-subentries.