For those interested in Eastern Orthodoxy, Ancient Faith Ministries
has a sale on the ebooks they publish. $5.25 each. I don't normally see these discounted at places like Amazon.
Sale is good through May 17. All books can be downloaded in mobi, epub, and pdf formats. The sale price will show once the book is added to the cart.
Their
Ancient Faith Radio site is a good place to find many podcasts on Eastern Orthodoxy.