I'm trying to build a small yellow pages index for my hometown. 
There are many businesses across the town from various categories . 
 
I want to find an ENGLISH free-non-copyrighted database I can use*
that will have a "yellow-pages" like classification-tree.
 
*Use in commercial enviourment, without copyright infrigation. 
 
The tree must include most of the available sectors, including
sub-categories and sub-sub categories.
 
Here are some good examples: 
 
1. http://yp.superpages.com/sform.phtml?SRC=&STYPE=S 
(For example : Automotive > Parts Supplies, & Equipment > Tire
Dealers)
 
2. http://www.yellowpages.com.au/browse/browseEntry.do 
(For example: Beauty / Fashion > Footwear > Footwear Repairs) 
 
3. http://yp.yahoo.com/ 
 
The database should be prefarbly on a relational tree I can
import/export easily to my sql tables easily, otherwise - a simple
well-organized text list can help too.
 
Remember - the database must be non-copyrighted so I can translate it
and use it.
 
Thanks, 
 
Michael