Reference Finder
The biggest challenge can be finding material that's related to what you're working on. The Reference Finder is designed to make that simple. Copy and paste a rough draft -- or an article you've found that is directly related to your topic -- into the online form, and let our algorithms do the work of finding related material from our 3600 publications. Alternatively, you can use your rough draft to produce a specialized "Web Search Builder" (see below) from your own text, to use to research the Web.

Active Skim
Because browsing or skimming electronic publications is difficult, we devised a "skim view" to help you browse any chapter. For each page from the chapter, we identify the two sequential sentences that have the highest significance value, to give you the flavor of what's on the page. The Active Skim interface also lets you select from the most important phrases from the chapter, to display every instance of that phrase within the chapter. Active Skim is available from every Table of Contents on our site.

Web Search Builder
Using the Web for research can be frustrating; thinking up key terms associated with a topic can be a puzzle. Because our lexical algorithms have identified the significant terms within the context of each chapter, we are able to provide an interface that allows you select and to "pair up" key terms. This allows precision searching of the NAP site, Google Web, Google Scholar, Google Book Search, Yahoo Web, and MSN Web. You can even add your own terms to the mix. Search Builder is available for every chapter available on our site.