I have been coming across so many free sites that are useful, I just have to try to put them all in one place. I'll add to them as I find them.
8notes Free sheet music for most instruments, some finger charts, various info plus midi files of music
Assignment: the World In 15 minutes, gives you news, puzzles, and homework.
Art Lessons Free ideas for art lessons by grade.
http://www.bbc.co.uk/schools/typing/ Dance Mat Typing! Teaches the proper way to type. A little silly, but that's part of the fun.
Brainpop Fun animated movies in which "Tim and Moby" explain everything from Ancient Egypt to gravity. This is a pay site, but may be free through your library. Check with your librarian!
COKAH My own private homeschool group. We do mostly fun stuff like museums, Minnewaska programs, Rocket Day, Astronomy, things like that. And just playing around together.
Kids Know It Educational Games about almost everything including a Poptropica-like game which lets you advance depending on facts, etc.
Lesson Pathways Complete lesson plans for grades K-5 in Language Arts, Math, all sorts of things. There are great links to all the activities you need to make a fun unit study.
Math Connects Math tutorials and more for grades K-6.
New York State Assembly Things to do for grades K-12.
Ology American Museum of Natural History page with games for abt. 1-5 grade.
Paper Plate Education "Serving the Universe on a Paper Plate": Many many many activities involving paper plates. Who knew paper plates could be so educational? Lots for older grade school! Astronomy-leaning.
Postcrossing Allows you to send and recieve postcards from all over the world.
Reading Logs Lets you put in words for spelling (online) or vocabulary (print and paste onto index cards). Very useful when you have something specific to work on, like history.
Scott Foreman Reading Grammar and Writing workbooks online free!
Spelling Connections The good thing about this site is that it allows you to sign up as a teacher and keep track of your students.
TJEd A different (Jeffersonian) point of view regarding education, specifically focusing on the student as the responsible party in terms of learning, and focusing on reading the classics. Free list of the classics they recommend when you sign up!
US Mint for Educators Lots of ideas and lesson plans.
Vocabulary Games Indeed, vocabulary games.
