Impermanence on Internet

Impermanence means that the home pages of the websites are always changing. It gives the internet user the impression of movement and updating on the sites. For example on Virginmega site, the home page is changed quite often according to the cultural news and to their marketing strategy.
On Nike site, a different visual is downloaded each time you click on it. Each time, a distinct universe is displayed around a sports activity with the Nike shoe fit for it.
On Neuf telecom site, you've got different information : news, services,... thus the home page changes daily and according to the products they want to promote.