Metaphors for Web Hosting

Trying to come up with a metaphor to help explain how webhosting works -- specifically, what someone needs to do to change their webhost. There are three key parts:

1. Domain Name - registered with a company like networksolutions.com
2. Web Site - the folders and html files that make up the site
3. Web Host - the company that hosts the site (e.g. serversanddomains.com)

I was thinking first of using an RV as an example -- but maybe a boat would be a little better, as boats have names. But do you register boats? Assuming you do:

1. You name your ship and register it with a country (like Haiti) so that people know where to get info on it. (Domain registration)
2. You build your ship. (The Web Site)
3. You find a port to dock your boat so people can come and visit it (though that's not really the function of a boat.) (Web Host)

Maybe a business would be a better metaphor:

1. You register your business and take out an ad in Yellow Pages (domain registration)
2. You rent office space (hosting)
3. You move your furniture and employees into the office space (site)

If you want to move you business, you need to lease a new office (the hosting). You need to know where all your furniture and employees currently on (for the analogous small website, this would presumably be on some developers hard drive). And then you need to let the Yellow Pages know your new location.

I guess that works.