In Christianity, the Godhead is a unit consisting of God the Father, JesusChrist (the Son), and the Holy Spirit. Though often used interchangeably with the concept of Trinity, the terminology of Godhead is broader than the idea of Trinity, and includes other ideas of how the Father, Son, and Holy Spirit are interrelated.
Contrasting views of the Godhead
The nature of the Godhead is defined differently among different Christian denominations. In most branches of Christianity, including Catholicism, Eastern Orthodoxy and most of Protestantism, trinitarianism prevails and the Godhead is viewed as the Holy Trinity, and so the word Godhead is often used interchangeably with Trinity.
"The Oneness of God" by David K. Bernard (Series in Pentecostal Theology, Volume 1) (http://ourworld.compuserve.com/homepages/pentecostal/One-Top.htm)
Comprehending God - Part 1 (http://alpha.bme.emory.edu/bible/index-24k/eg/Comprehending_God-pt1.mp3) mp3 sermon/study from Hope Video Ministries (http://www.hopevideoministries.com/media_with_doug_batchelor.htm)
Comprehending God - Part 2 (http://alpha.bme.emory.edu/bible/index-24k/eg/Comprehending_God-pt2.mp3) mp3 sermon/study from Hope Video Ministries (http://www.hopevideoministries.com/media_with_doug_batchelor.htm)
Amazing Facts Questions Answers about trinity (http://www.amazingfacts.org/media/radio/question_archive.asp?tName=God)
Binitarianism - the belief that the Godhead is composed of two separate beings, Father and the Son, while the Holy Spirit is the power of God and not a separate being.
Godhead (Mormonism) - The Godhead is composed of Father, Son, and Holy Spirit, a divine council of three distinct beings, according to the beliefs of various branches of the Latter Day Saint movement.