This site provides student with plenty of resources to find answers for their homework. It has dictionaries, translation sites, pictures, encyclopedias, geography, museums, sounds, thesaurus, math, measurments, grammar and other useful sites.
"Best Evidence Encyclopedia is a free web site created by the Johns Hopkins University School of Education's Center for Data-Driven Reform in Education to give educators and researchers fair and useful information about the strength of the evidence supporting a variety of programs available for students in grades K-12."
The Encyclopaedia of Informal Education contains 133 articles and has a "call for contributors" link. Offerings interesting alternatives from past to present to the formal educational processes."