From Constantine to the Medieval World, Vol. 2
– Ivor J. Davidson. Baker Books.
This is a multivolume set that draws from the wisdom and expertise of church historians and theologians. A resource for your library that will help you understand the development of the church through the early years.
2ProphetU is an online magazine/website, started by Warren Wiersbe and Michael Catt, to build up the church, seek revival, and encourage pastors.