Homeschoolbookrenter.com is a site I stumbled on while book shopping online. I knew these sites were becoming popular for college texts, but had no idea such a service was available for homeschoolers. I spent a while poking around the site, and was amazed at the number of books available for rental. The rental contract is a flat fee for 9 months, and the price is generally 1/2 the cover price of the book. For example, The Complete Writer: Writing With Ease: Instructor Text by Susan Wise Bauer (list price $29.95/Amazon price $19.77) is just $11.98.
While some categories are not as well populated (Math has only 2 publishers: Saxon and Math in Focus) some are quite well-stocked (science and language arts, especially). There are selections from both secular and Christian publishers.
Homeschoolbookrenter.com looks to be a great option for those of us with little shelf space to keep books we're finished with, as well as a great way to try new books without worrying about being stuck with things that don't work for us. No more lugging boxes to used curriculum sales! We will be trying this service very soon.
If you've used, it post a review!