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.
Tuesday Language Arts
This company provides books and activities for developing vocabulary.
This is a small mom-owned company that provides science resources.
Thursday History/Social Studies
This British site has resources for history learning at jr. high and high school levels.
Learn computer science through game design with this online visual programming platform.
Saturday Grab Bag
Printable curriculum materials for preschool through second grade levels.
This site gives instant, step by step solutions to math problems.