Well organized and easy to navigate, with a separate kids' site. The teacher section includes excellent lesson plans and self directed professional development modules. Highly recommended for researchers of all ages.

A richly interactive site where visitors can design and create varied genres of art. A virtual tour through the NGA has an accompanying guide in 5 languages. Extensive information on artists from all eras. Lots of activities at the teacher's site. A good instructional site. Grades 3-12.

Attractive web design with simulations of satellites stations. Good job of explaining reconnaissance and satellites. Includes audio with separate buttons for elementary and secondary students. Recommended for grades 3 - 8. Provides links with extensive resources for parents and teachers.

Good source for information on how U.S, currency is made. Good section on counterfeit currency. Recommended for secondary students.

Ideal for grades 4 - 12. Information on the census bureau and its functions. Extensive demographics on each state with accompanying quizzes. A good site for quick statistics on a state. Easy to navigate.

Good companion site with a lesson on copyright. Information on patents, piracy, privacy etc,. Answers questions with interactive activities on what is a patent, how to apply; a tutorial on how to search for patents; related games links.

Site visitors can research extensive lists of diseases and disabilities and be linked to symptoms, descriptions, statistics, etc., about the selected disease. The "Web Quest" has 8 steps for visitors to follow to expand the search on the selected disease with self assessments and links.

Great site for environmental topics for kids. Interactive activities and a career exploration tab for information on varied environmental jobs.