When I first decided to use Adwords, I thought that it might be a waste of money and it was for a little while due to a lot of irrelevant clicks and some so called click fraud.
Then I discovered a man who specializes in Adwords management. Steve Gibson of PPC Services UK. He completely turned my campaigns around and now i get targeted clicks and my landing pages have been rewritten resulting in an increased level of telephone calls ie sales cause if someone rings me its a virtually guaranteed sale.
So thank you Steve.