Check out all the posts covering multiple subjects in the Homeschooling for Free series.

1. Countries & Cultures Coloring Pages -multiple pages for several countries
2. Xpeditions Lesson Plans - geography lesson plans organized by grade; by National Geographic
3. Colouring Book of Flags - printable black & white images of just about every flag in the world
4. The Learning Calendar - “history-based activities”
5. Free Blank Outline Maps of the Countries and Continents of the World - basic outline maps
6. Geography Online Games - learn maps, countries, capitals, landscapes
7. Netstate.com - in-depth information about the 50 United States
8. Outline Maps - easy to use site, well-organized; downloadable maps from all regions of the world
9. Map Puzzles - test your knowledge of countries and capitals; click and drag online; no downloads
10. United Nations Cyberschoolbus - get an inside look at the UN, current events, ways to get involved in global causes, how Model United Nations works, more
11. Investigating the First Thanksgiving - “You are the historian” and it’s your job to find out what really happened.
12. National Museum of American History for Kids - various games and activities to do at home that pertain to American history
13. History and Politics Out Loud - don’t just read famous speeches, listen to them
14. Encyclopedia Mythica - “the award-winning internet encyclopedia of mythology, folklore, and religion”
15. This Day in History - searchable by subject
16. US State Unit Studies - activities & projects for each state
17. 50 States Book List - a list of books for each state
18. WorldAtlas - “maps, flags and geography facts”
19. Test Your Geography Knowledge - covers countries, states, oceans, etc.
20. A Book in Time - book list arranged according to historical period
21. Online American History Textbook - for middle/high school
22. Mr. Dowling - “browse the world”
23. Best of History Web Sites - “annotated links to over 1000 history web sites” and more
24. Internet History Sourcebooks Project - public domain historical documents
25. The Library of Congress Lesson Plans - organized by theme
26. History & Social Studies Lesson Plans - searchable by category and grade level
27. EconEdLink - economics lesson plans; K-12; searchable by topic
28. 192 UN Recognized States in 10 Minutes - test your knowledge before time runs out
29. 50states - info about the 50 states and capitals
30. Worldmapper - re-sized territories according to subject
31. Bio4Kids - few dozen biographies of famous people

Know of any more?  Share the love & leave ‘em in the comments!