I'm mostly looking for math curriculum, but other items as well. In the past, I've found used items through a yahoo list serv that I'm part of and by chance, but I started wondering today if there were any online sources dedicated to used curriculum, etc...
Plus I look on ebay, craigslist, and amazon (lots of good used supplies there.)
And there's lots of specials at http://www.homeschoolbuyersco-op.org/index.php?&c=1
That's how we learned about the happy scientist and ooka island.
Great! Just what I was looking for. Thank you!