This subscription service sends a monthly letter describing the adventures of a fictional explorer. The letters are copies of hand painted/written originals, and addressed by hand. Looks like a very interesting way to learn about history and geography, and certainly affordable at $6/month.
Saturday Grab Bag
Printable curriculum materials for preschool through second grade levels.
Thursday History/Social Studies
This website from the Government Publishing Office has resources for learning about the US govern
The name of this site says it all!
Tuesday Language Arts
This company provides programs for beginning reading and math learning.
This company publishes three books for helping elementary learners explore science.
Self-paced, online courses for learning coding.