add another addrs list & make GAL avail

Our Global Address List contains addresses for our company. I would like to make two more lists, one for our parent company and one for our sister company in the states.

How do I create another Address List with the other e-mail addresses ?

The second part to my question is how do I make the Global Address List ( and these new lists) available to an outlook/exchange profile created for use over the internet (i.e. it does not have MS Exhange Server as a service but uses Internet e-mail) ?

Sincerely,

Barry