My thoughts: If your afraid of coldcalling then your not even close to a businessman and imo you should go find anohter hobby.
Here my simple step plan:
1: Select a real business niche
2: Write down the company's in the sponsored links, they pay for Adsense
3: Google these company's in the normal list
4: Write down the company's that you can't find in the normal search list
5: Call them right away and offer your services.
A phonecall could go like this:
Your speaking with J.Johnson from Johnson Web Marketing. We noticed that you use Adsense to advertise your business and thus making recurring montly costs. What you think if we could put your list at page1 without having to use sponsored links for a one time fee, so you'll safe yourself a lot of money on Adsense and attract even more customers cause people tend to ignore the sponsored lists.
We offer this service on no cure no pay base for only $xxx,-
] (dont use this exact intro as I'm not a native English speaker but I guess you got the idea)
Most common answer you will get from the company man, oh that sounds really interesting, followed by a couple of questions if they are truelly interested, and most of the time they ask to send some extra info on the mail. Send the mail and wait to get your order. Don't you hear anything, call them back in a week to remind them. They might have missed the mail or there secretary might have removed it as she thought it is spam or whatever.
Sidenote: I called my first company yesterday and achieved an order for 250 euro. Probably I'll spent about 3hrs and $50 on outsourced linkbuilding to get him to page1, easy money
Also speak to people you know who run businesses, I just talked to my landlord and offered him an extreme low price of 100 euro. I did this cause he has tons of business accociates where he can promote my service where I can charge the full price too.
Don't be afraid, just act! The worse thing that can happen is that they say no but mostly they simply can't refuse this offer as it saves them a lot of money.