From Fight the Smears:
The truth about Barack Obama's faith
Truth: Senator Obama has never been a Muslim, was not raised as a Muslim, and is a committed Christian. Further, this myth perpetuates unfortunate falsehoods about the Muslim-American community that are offensive to people of all faiths.
Below is a uncovered copy of Barack Obama's childhood school registration, which shows him registered (under the name Barry Soetoro) as Islam in the category of religion.
Photo courtesy of http://noquarterusa.net
For the record, I don't care that Obama was raised as Muslim at least at one point in his life. Indeed, in theory, that would be a sign of a positive, tolerant, multi-religious view. What is the issue is that Obama and his campaign continue to lie about very basic facts involving his own history.