Here is a list of sites where you can find good sources of Christian reading.
     http://www.challies.com (Mostly info about books, good articles.)
     http://www.ccel.us
     http://www.christianbook.com/page/ebooks/free-ebooks
     https://www.bookbub.com (great for books of any genre)
You can also search amazon.com for “free Christian books”.