Homeschool Classifieds One of the largest sites on the web for buying and selling new and used homeschool materials. Very organized and user-friendly. You can find activities and events by location. Free academic planners.

Home School Legal Defense Association's (HSLDA) Curriculum Market
This was started by HSLDA in response to their members’ concerns about the policy of other auction sites that do not allow the sale of teacher or instructor materials (such as eBay). You do not have to be a member to sell items here, but you must be a member to buy items.

Homeschool Reviews Provide a community where homeschoolers can read curriculum reviews, participate in forums, and buy and sell curricula.

Christian Home Library (CHL) Keep an eye on this! An up-and-coming lending library designed especially for Christian families, individuals and homeschoolers. Site will soon have an on-line catalog of thousands of Christian, family and educationally oriented options. Through membership, you will be able to order items for loan online and have them shipped to your home.

Vegsource Talk & Swap A great place to buy and sell used curriculum via postings. A huge number of homeschooling discussion boards are available on this site.

Well-Trained Mind Board including their Sale/Swap Board. All things to do with the Classical approach to homeschooling including buying and selling curricula.

Other Websites Not Specific to Homeschooling:

Amazon The big web book place. Many used books can be found for reasonable prices.

eBay Find homeschool items by auction. In recent years, eBay made the decision "to prohibit the sale of Teacher's Editions of textbooks and solutions manuals that are intended solely for use by teachers." So, there are some items that you may not find on eBay.

Half.com eBay's side kick for used books.