try this for research material, not all inclusive but in depth for sure:
http://en.wikipedia.org/wiki/Christianity
Christian divisions
There is a diversity of doctrines and practices among groups calling themselves Christian. These groups are sometimes classified under denominations, though for theological reasons many groups reject this classification system.[8] Christianity may be broadly represented as being divided into three main groupings:[9]
* Roman Catholicism: The Roman Catholic Church, the largest single body, includes the Latin Rite and totals more than 1 billion baptized members.[3]
* Eastern Christianity: Eastern Orthodox Churches, Oriental Orthodox Churches, the 100,000 member Assyrian Church of the East,[10] and others with a combined membership of more than 300 million baptized members.[3]
* Protestantism: Groups such as Anglicans, Lutherans, Reformed/Presbyterians, Congregational/United Church of Christ, Evangelical, Charismatic, Baptists, Methodists, Nazarenes, Anabaptists, Seventh-day Adventists and Pentecostals. The oldest of these separated from the Roman Catholic Church in the 16th century Protestant Reformation, followed in many cases by further divisions. Estimates of the total number of Protestants are very uncertain, partly because of the difficulty in determining which denominations should be placed in this category, but it seems to be unquestionable that Protestantism is the second major branch of Christianity (after Roman Catholicism) in number of followers.[3]
Just wanted to get my opinion out there.
