Academic Superstore sells software, computer products, learning games, books and lots of other interesting things related to eduation. You can get some high end products with great educator discounts. Some purchases require proof of eligibility, which you can get through membership in Homeschool Buyer's Co-op (and other hs organizations.)
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.