For Falafel Lovers Only

I'm no expert - but I'm a fanatic for great falafel. I've tried them all over the world, I've gone far out of my way to get my fix, and I do occasionally find myself with a deep unsatiable craving for one. Falafels are one of those foods that everyone has a different favorite place, and they magically cross borders without conflict in the Middle East. I've assembled a starting list of good spots in NYC, but with the power of the internet it would be great to get a list of good spots around the globe, and views on what makes it so good.