The New York City Atheists have had this ad running on Manhattan buses for the past month:

I love the ad because if you get offended by it, then really, you’re the problem.
The publicity continues with Clyde Haberman‘s article in The New York Times:
The message, in white lettering on a sky-blue background, is nonconfrontational by design. It doesn’t attack religion or say there is no God. It simply says: “You don’t have to believe in God to be a moral or ethical person.” Hard to gainsay that thought. Most of us know nonbelievers who are pillars of rectitude. We also know pious types who are as honest as a Siberian winter’s day is long.
…
… the poor economy has been something of a blessing for the nonbelievers. “We probably could not have gotten this poster program in New York City if the financial times were very good,” said Mr. Bronstein, who is 70 and retired from I.B.M. “But people are looking for business.”
The article also highlights the most important part of the worldwide atheist bus campaign: It’s not about tearing down religion. It’s about showing closeted atheists that they are not alone. It’s about getting atheists to be open and proud of their non-belief in a god.
Let’s keep the ads coming.