Free Homeschooling 101. Both the blog and the Facebook page offer great links, broken down by subject, to free homeschooling tools and resources.
Don't let the small number of posts in the index fool you . . . each post shares a number of resources. For example, "Free Geography" shows only one post, but that post contains links to 10 great free resources. Can't wait to check them out, especially the "White House 101" (we're hoping to tour the White House on our DC trip this month) and "50 States and the games at Grammaropolis (Noah will love these!)