A digital library featuring literacy, assessment, and tracking tools. Parents can assign books and writing or literacy tasks and see reports on progress. It appears to only be available to homeschoolers through Homeschool Buyers Co-op, but the price is very reasonable!
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.