It is very good at finding the most useful sites, not just every site that happens to mention your search term. From there, you can select subtopics and specific Web pages. In keeping with Google's indexing philosophy, the sites listed are deemed to be the most appropriate and helpful. It offers links to over 100,000 Web sites, and presents original content, forums, education news, job postings, book reviews.and essays on school-related topics. Facts are archived so that you choose something different if you don't like the editor's pick for the day.
Subjects covered include fractions, basic math skills, alphabet knowledge, and geography.
A different bird is highlighted each week, but the huge archive of previous postings is encyclopedic. Each bird report includes recordings of the bird's song, paintings and photos of the bird, and a summary of its behavior and habits. This site is a subdivision of the Cornell Lab of Ornithology which offers more detailed information on bird behavior and research projects. Visitors to the site have the opportunity to assist with some of the projects.