This is the first time I've seen so many respond and no one is right. Your url is unimportant. Stop wasting brain cycles on it. If you've built something valuable it could be buried in the bowels of tripod or geocities and people will find it. Most of the time when I hear about a site these days, I hear the name, not the url. This has been increasing as companies get more desperate for urls and there's a cleverness war (slap-fight really). I google the name (delicious => del.icio.us, first link) or keywords that I remember get me what I want ('inflation calculator' => westegg).