I may be the last person interested in public diplomacy to have heard of Amr Khalid and I have no excuse. Time magazine picked him as one of the world's 100 most influential people. The New York Times Sunday magazine described him as "the world's most famous and influential Muslim televangelist." He's been compared to Rick Warren and Pat Robertson on that score, but Dalia Mogahed, who recently co-wrote an insightful analysis of the Islamic World (see Who Speaks for Islam), says he's really more like "the Muslim Oprah."
His popularity is huge and, from what I've seen on his web site, Khaled seems to be just the moderate voice many have been looking (and hoping) for in the Muslim World. He rejects extremism and promotes faith-based community development. He does not pretend to be a religious scholar (he's an accountant by training), but he stresses everyday actions to get closer to Allah such as honesty, humbleness, and being polite. His message strikes a particularly resonant chord among middle class young people across the Muslim World, who he reaches through satellite TV and the Internet.
A few hours of Internet research suggests that Khaled's audience is actually larger than Oprah's, as his influence. Maybe she should start calling herself "the U.S.'s Amr Khaled."