> I'm reading in a book where it says that I should be careful where I
> save my web services file. When I announce my web services to the
> world I cannot easily change its location.
>
> Has this to do with all the dns servers around the world or is there
> more to consider?
no, it's not a DNS problem. DNS can be changed quickly, but not quick enough for an in-progress web request.
The thing that's hard to change is the domainname and page name. If your company decides to change their domainname, you've got to tell all users to update their configurations.
UDDI can also be used to redirect users to other locations for a given service. But UDDI is not widely used at this time.