Chocabloc,
You would be wasting your money as if you consider howmany tomes you use it yourself. If you need to find company most people and businesses would use the net and/or yell.
You should also consider the type of person who would nowdays use yellow pages, i.e they have no internet access, what age bracket would this be and the amount they would then be prepared to spend, if you put all three togeather then a negative image is already in the mind
I paid £5000 for advertising un it 3 years ago. I might have well burn't the cash the return was that bad.
Regards
Graham