Ambleside Online is a free homeschool curriculum designed to be as close as possible to the curriculum that Charlotte Mason used in her own private and correspondence schools. Our goal is to be true to Charlotte Mason's high literary standards. Ambleside Online uses the highest quality books and costs no more than the cost of texts. The curriculum uses as many free online books as possible, and there is no cost to use this information or join the support group.
Personal Experience: This one is near and dear to my heart, as our family has been using Ambleside Online as our curriculum for the past two years. Our lives are much richer for it! If the book lists and schedule at first seem overwhelming, look again. The children are not sitting for 8 hours at a desk. Rather, they are reading and studying in small amounts, to have time to absorb the information.
I highly recommend joining the support groups, which should be listed at the site (they are Yahoo groups, I think the main one is called "AmblesideOnline." Let me know if you need me to hunt for it)
~ Lori Seaborg, FreelyEducate.com founder