I think atheists need an agreed-upon new symbol. I've been wearing my baseball cap with the American Atheists' atom-with-the-A-in-the-middle for a few years now, and nobody, with the exception of one curious friend, has even asked about or commented on it. Let's be honest, it's outdated. It just reminds people of the atom bomb or the Jetsons, the former being immensely more destructive.
There's been sort of a mini-movement in culture recently (at least American) with media attention toward books questioning the function of religion. Consequently, it feels like the time is ripe for the launching of a new, all-important marketing logo. Something that rivals the popular symbolism of specific religions. It's a visual, quick-message world.
I don't know what the new symbol could be, but it certainly shouldn't be one of those circle-with-a-line-through-it deals. It has to change though, and the atheist community must unanimously embrace it. Granted, that's a tall order. Any ideas?
I'll start with one: the first 4 randomly-generated characters of every world culture's alphabet or language system. It may be a little too bleak to sell, but there ya go.