I am just a Web designer, so this is in no way asking for a handout. I just would like us to brainstorm a bit. How would you go upon creating a hosted website for a service, where when a user registers they get a subdomain, and the script of your choice is automatically installed within their directory? Also, how would you go upon setting up different levels such as free, (x) amount of dollars a month, etc.? Again, I'm not asking for a handout. This has always just interested me, and I've wondered how people do this. I know you would need a DNS, but the other necessities evade me.