Sure, go to my website under research links. You will find a link to the free homeopathy books online. I don't have a good herbal site, but you can definitely go to Emerson, and from there explore backward to the herb producers' sites. Because Emerson makes sure they do third party independent testing, they should be up on the latest research. Otherwise google the American Botanical Council. They have a whole online herbal course.
I hope this is helpful.