Here’s a really nice, well-delivered talk by Everyone’s Atheist Grandfather, Dr. Daniel Dennett. It stems from his work with Linda LaScola on preachers who are secret nonbelievers, and the topic is “You might be an atheist.” He gave it at the recent Global Atheist Convention in Melbourne, and the YouTube caption says that there were 4,000 people in the audience!

I love his relaxed style of elocution and roguish humor (see the witticism/truism that starts at about 15:00).