Dictionary of Units of Measurement - This dictionary, put together by Russ Rowlett, the Director of the Center for Mathematics and Science Education at the University of North Carolina Chapel Hill, will help you learn more about units of measurement.
History and Culture Guide - This National Geographic Site is a blend of new and classic features, covering a wide variety of people, places and time periods.
Classic Reader - At this site you can read, search, and annotate great works of literature by authors such as Dickens, Tolstoy, Shakespeare, and many others. The collection currently contains 743 books and 1041 short stories by 211 authors.
