I enjoy The History Blog and thought it might be useful for home school. I could see that reading it could help students select topics for papers, and learn about what is out there in general. All sorts of history comes up on this blog: http://www.thehistoryblog.com/
For example, an item stolen at the end of WWII, returned by the auction house: http://www.thehistoryblog.com/
There is a post with the picture of a cradle from around 79AD: http://www.thehistoryblog.com/
This is a varied and fascinating blog and just reading it could make a person better educated.
Dear Lord, thank You for marvelous blogs like this one. Please bless this blogger. +Amen