I would include biography as well. We are heavily weighted toward moderns, who are also, not coincidentally, the easiest to research using Google. That will change as more people get more familiar with using Google Books instead to research the biographies of people who have been more forgotten as time passes. We probably have 50,000 biographies of people who lived in the past 100 years, but only say 500 biographies of people who lived in the 18th century when we should, by population count, have perhaps ten times that number if we're truly trying to represent the knowledge which actually exists in all print sources. Even just to take an example, some noble houses of Great Britain, like the Dukes of Portland, or the Earls of Dundonald, we don't have a complete set of articles, one on each one. Even though such biographies do actually exist in print. In a message dated 2/16/2009 11:56:48 A.M. Pacific Standard Time, george.herbert(a)gmail.com writes: There are whole fields of engineering and science that we have barely scratched the surface of at the moment. **************Need a job? Find an employment agency near you. (http://yellowpages.aol.com/search?query=employment_agencies&ncid=emlcnt…)