Libweb
A global directory of library home pages.
http://lists.webjunction.org/libweb/

Find a Library
Database about public libraries in the United States organized by state and city/town. Designed to be used by students. Find out how many books a library has and how many people visit it.
http://nces.ed.gov/nceskids/tools/library/

Internet Public Library TeenSpace
Homework help by subject, tools for writing research papers, and a form for asking a reference question, as well as fun stuff including humor, trivia, a poetry wiki, urban legends, and a graphic novels guide.
http://www.ipl.org/div/teen/

International Children's Digital Library
Free access to high-quality digital books from around the world. Browse by age, genre, book length, character types, or even the color of a book's cover.
http://www.childrenslibrary.org/

StoryPlace: The Children's Digital Library
Listen to interactive children's stories, play with on-line activities, print out take-home activities, reading list and more. In English and Spanish.
http://www.storyplace.org/

LibrarySpot.com
Directory of web sites, arranged by type of library.
http://www.libraryspot.com/libraries/

Guide to Library Research
Offers tips for choosing a topic, finding background information, selecting and evaluating resources, searching for information, and citing sources. From Duke University Libraries.
http://library.duke.edu/services/instruction/libraryguide/

Springfield Township High School Virtual Library
Search tools, online tutorials, an in-depth research guide, and pathfinder guides to common research topics.
http://www.sdst.org/shs/library/