Sorry but most will not pay for PPC, they want buying customers only.
Potential customers would usually type "buy PPC advertising" into Google to find out more information. This means that you've to do a good job in SEO to get high ranking in search list for the key phrase.
You go out and look. They don't just come to you.
You can try craigslist.org
I run PPC marketing campaigns and I am looking for customers.
