Reference - Tools

    The preeminent Internet publisher of literature, reference and verse providing students, researchers and the intellectually curious with unlimited access to books, and information on the web, free of charge.
  • Creative Quotations
    Search 50,000 quotations from more than 3,000 famous people.
  • Education World® The Educator's Best Friend
    An educators best friend, includes a variety of resources from classroom to administrative to school issues.
  • Pima County Public Library
    Refdesk is a free and family-friendly web site that indexes and reviews quality, credible, and current web-based resources.
  • The WHY? Files
    Science behind the news.