I think we are seeing a more permanent biike boom, because a concentration has been reached. I live in an area that has Route 66 and Lincoln Sites, and it provides, through its touristiness, a good example. Some people are here because they live here, and were born here, like lifetime cyclists who have been cycling all their born days. Some come on business, and need the area to supply their agricultural materials, or steel, or heavy equipment, like commuters and utility cyclists. Others are just visiting, because of tourist attractions, relatives, or a wish to be in the country, like casual cyclists and Tour-de-France enthusiasts who are just into cycling because it's "in" But every year, the latter two classifications feed the former, and make more serious cyclists who make this a part of their life and culture, and encourage others to do so. We, as cyclists, are great evangelists for our cause, and the Internet has been a boon to cycling, IMHBLO.