Everything You Ever Wanted to Know About Christianity

A sample:

The Trinity

This is the Christian expression of God, who Christians say is personified by the Father, Son, and Holy Spirit. Not all Christians accept this: Unitarians, Jehovah's Witnesses, and some Pentecostals reject trinitarianism, as do Muslims. Interestingly, while this does not mean Pentecostals are Muslim, it does mean that Muslims are Jehovah's Witnesses.