Purchasing home school curriculum: The Hillbilly Bookbarn.  Local consignment store for homeschooling families to buy and sell curriculum.   http://hillbillybookbarn.com/index.html 

Tri-Cities email support group: Tri-Cities Christian Homeschool List.  A Yahoo group in the Tri-cities where you can get information from fellow homeschoolers and buy/sell curriculum.   http://groups.yahoo.com/group/TChomeschool/