Adam McGee of Harvard University writes Haitian Vodou and Voodoo: Imagined Religion and Popular Culture. The work discusses Vodou and voodoo's intertwinedness, and how Vodou suffers because of it.
Kilombo Restoration offers an online Vodun Class for those of Afrikan ancestry who are interested in learning an in-depth philosophy of West African culture. The course is four weeks long and addresses a variety of issues related to Vodun.
The Voodoo Society is a resource for teaching historic American Voodoo religion, including Voodoo, hoodoo, traditional witchcraft, rootwork, conjure, pow-wow and Creole-style folk magic.