That Quiz
That Quiz is a free tool for teachers that allows them to create and administer "tests" online. Create your "class" and make your student list. Tests may be timed or not timed. Great practice for math facts, geography skills, and more. You can create as many tests as you like and the grades are tallied, graphed, and averaged for you. You may create as many custom tests as you like - for any subject! OR browse tests created by other teachers FREE

Docs Teach
Tools to help you search the National Archives for primary sources of information to aid in the teaching of history. Students enjoy primary-source based activities that develop historical thinking skills. Use ready-made activities, or alter an activity to meet your needs.

Homeschool Advantage
Homeschool Advantage helps your children keep the facts they learn in their long-term memory. Children often forget many facts shortly after learning them, but this unique system of review will allows students to retain and recall knowledge for years. Students can learn over 30,000 facts for all grades, in these subjects: Geography, History, Math, Science, Spanish, Spelling, Vocabulary, SAT/GRE Prep. $

Flashcard Machine
This flashcard site allows you to create your own flashcards or use pre made sets. Add all the facts your children are learning to separate decks by subject, or topic. Review/study the cards in one set or multiple sets at once. When you are finished click the "Quiz Me" link to take a "quiz" on the cards you have learned. Cards can be exported or printed too. If you want to study on the go, download the flashcard machine app from the App Store or Android Market. Then you can practice your lists anywhere on your phone or tablet.

The Story Starter
The Story Starter is a useful tool that generates random idea the gives writing prompts for any fiction writing assignment; journal entries, stories, plays, etc.

The Homeschool Channel
Ever wish your TV had a station devoted to homeschooling? The Homeschool Channel may not be available on your TV, but it streams live 24 hours/day online. You can watch, or create an account on the site to blog and offer input.

Microsoft Mathematics
Microsoft Mathematics provides a set of mathematical tools that help students learn to solve equations step-by-step, gain understanding of fundamentals in pre-algebra, algebra, trigonometry, physics, chemistry, and calculus. Includes: full-featured graphing calculator, conversion tools, and additional tools to evaluate triangles and solve systems of equations.