Learning Games for Kids has some unique kid's games and songs.
Here are a bunch of various printables from Family Education.
Ellen McHenry has some fabulous games and activities to download. Any of these would make great supplements to your lessons.
I'm interested in checking into these computer classes from Motherboard books. She has different levels of courses that teach basic computer spreadsheets and such to building a website and HTML.
Check out the many, many cool things on Paula's Archives.
I'm also interested in checking out Bunkhouse Sewing's lesson plans for sewing all kinds of things. This curriculum is for purchase, but the prices are very reasonable.
Here is a great "On this day in history...." site.
Interested in Charlotte Mason? Check this out.
Woodworkers Resources has some great information and free projects. I am interested in their Woodshop 101-it looks like a great class.
St. Aiden's Homeschool has some neat South African notebooking pages and many other things to check out.