When people think of religion on YouTube, most probably flash to "gotcha" videos of Sarah Palin's old church or Barack Obama's old pastor. But the video-sharing site is also being used by a wildly diverse collection of pastors, rabbis, imams, gurus, and pious laypeople — like Roman Catholic Steve Silvia, who made the video above — to celebrate and explain their creeds. These aren't glitzy televangelists. In keeping with the YouTube ethos, many simply fire up camcorder and go. But low cost and infinite range, plus the mini-video's ascent as one of the culture's preferred ways of imbibing information, means vastly increased exposure for clerics who would otherwise have tiny flocks. "For years, people in my business talked about how the Internet was going to revolutionize religion the way the printing press helped create Protestantism, but it didn't happen," says Steve Waldman, founder of the multi-faith website Beliefnet. But with the rise of YouTube, he thinks the unassuming, grass-roots religion clips like the ones that follow "could be the beginning of that kind of transformation."