Free clip art

Official site of the Alaskan Iditarod

This is the National Gallery of Art's education site with information on artists, types of art, lesson plans, etc.

Library of Congress site on political cartoons, including cartoon analysis guide

New York City's Metropolitan Museum of Art has an online art
history database that includes an extensive timeline depicting
artistic periods throughout history, examples of art, and
searchable indices.  (Edutopia Newsletter)

A wealth of resources are available on this site concerning the life, times and works of Wolfgang Amadeus Mozart. (Eduhound Weekly)

Brain teasers with a puzzle for each week separated by grade level, early primary, later primary, middle school.

Free clip art for educators and students categorized by subject and including coloring pages, backgrounds, fonts, icons, lines, and worksheets