henry0 - 7:11 pm on Jan 30, 2009 (gmt 0)
Another one in that range:
I do not know about other Countries.
But in the USA each city let you access the register of new registered biz and DBA (doing biz as)
Pending on how big the city is you need to look at it once every other day or weekly.
The trick is to hire someone (a kid) to visit each city relevant to your area for doing hand written lists.
Or you may pay the city very few $ to purchase a copy
Even better since a few years many cities publish it on the web
Have fun :)
This gives you access to the owner real address
so you need to be not bothering and tactful!