http://www.floydcalderwood.com 

Contains tips for educators and a comprehensive index of websites for teachers and students to use

http://school.discovery.com/schrockguide/index.html

a brilliant array of resources for teachers

http://webquest.sdsu.edu/

a great index of webquest for all ages and abilities

http://www.thegateway.org/

one stop, any stop access to high quality lesson plans, curriculum units and educational resources on the internet

http://www.mainelad.org

from the State of Maine - a site to help teachers find assessments that fit with local assessment systems and the Maine Learning Results

http://www.lizardpoint.com/fun/

a collection of geography and math quizzes with interactive activities such as Mastermind for older kids. Lots of fun and learning.