Tolerance and Tension: Islam and Christianity in Sub-Saharan Africa, a 19-country survey by the Pew Research Center's Forum on Religion & Public Life, reveals that the vast majority of people in many sub-Saharan African nations are deeply committed to Christianity or Islam, and yet many continue to practice elements of traditional African religions.

A new 19-country survey by the Pew Forum reveals that the vast majority of people in many sub-Saharan African nations are deeply committed to Christianity or Islam, and yet many continue to practice elements of traditional African religions.

Data from a 10-country survey of Pentecostals conducted by the Pew Research Center's Forum on Religion & Public Life in 2006 provides estimates of the religious affiliation of South Africa's urban population.

A 2007 survey by the Pew Research Center's Global Attitudes Project found that a majority of Americans say it is necessary to believe in God in order to be moral and have good values.

The Pew Research Center conducted more than 55,000 interviews to obtain a national sample of 1,050 Muslims living in the United States.

Pentecostalism and related charismatic movements represent one of the fastest-growing segments of global Christianity. Even more than other Christians, Pentecostals and other renewalists believe that God, acting through the Holy Spirit, continues to play a direct, active role in everyday life.