Math - 6th Grade http://www.openmiddle.com/category/grade-6/expressions-equations/
National Geographic: http://www.nationalgeographic.com (general site to all magazines on line monthly)
National Geographic Kids Explore Magazine http://kids.nationalgeographic.com/
Includes articles, games, videos, stories, and activities.
Create printable word search, crosswords, maze, and math puzzles with this generation tool.
Poetry http://www.gigglepoetry.com http://www.poetry4kids.com
Reading Rockets http://www.readingrockets.org
These articles are for parents to read and activities to do with children and reading.
Articles and tips from A-Z.
Some of the articles are also in Spanish for parents.
The White House http://www.whitehouse.gov http://www.whitehouse.gov/history/life/video/index.html