Since these search engines for kids are age-appropriate, they are also a great source of pictures, games, activities and learning resources suitable for use by teachers.
Awesome Library - 17,000 sites in a directory. Carefully reviewed, including the top 5% in education.
Cyber Sleuth - Kids K-12 student friendly links; sections for topics such as holidays, science fair, US history, inventors, explorers...more. Also sections for Internet safety, crossword and Sudoku puzzles, coloring pages and clipart
Dib Dab Do - a smarter, safer way to search the Internet. Also categories.
Fact Monster - from Information Please Almanac. Facts and information around the needs of children.
Internet Search Engines for Kids - all kinds of links to specialty sites for biology, general science, history, etc. as well as resources such as dictionaries.
Kidoz - simple navigation; contains games, videos, e-mail and websites. Once you download it, your child can start surfing kid-friendly sites - free download (no spyware or adware).
Kids Click - web search directory for kids compiled by librarians, winner of the American Library Assoc. award for "Great Website." Good for K-7.
Kids.Gov - educational links from government and other sources. Good for kids looking for information that is age appropriate and for teachers developing lesson plans. Two tabs: K-5 and grades 6-8.
On-Lion for Kids! the NY Public Library has put together a great collection of information about children's books and authors, as well as a collection of Internet links that are of interest to kids, teachers and parents.
Surfing the Net with Kids - website reviews for kids, teachers and families. Organized by broad subject headings. Tons of information.