Some PPC's are tightly controlled, limiting number of sites linked to any keyword, or reserving keywords and phrases to a small number of clients. Some even have evaluators that review each site to guarantee that keywords match site content. With this class of PPC engines, when someone clicks through to your site, you know you have a serious prospect.

The cost on PPC sites is usually only a few cents per click through, and can represent best advertising money you'll ever spend. That doesn't mean you only spend money on PPC advertising. Some PPC engines allow you to earn money by referring other website owners to PPC.

You can earn a commission on every service they purchase, or you can earn a few cents for every customer who clicks through to a site you referred. If you refer a lot of sites, it's possible that your income will be more than what you're paying, and you'll be advertising for free!

The Internet has become so big that it's like standing in middle of Library of Congress trying to find a single book. Let pay-per-click put your potential customers right in front of your pages.

Your headline should scream benefits that your product or service will provide potential customer. For example, if you are selling a foot massage machine, then tell your readers benefit in headline:

"Discover How To Reduce Sore Feet With Our Revolutionary Foot Massage Master!"

The headline is key aspect of your entire ad. You should spend countless hours trying to create and improve headline. If you do not get potential customer's attention with your headline, kiss sale goodbye.

The second step is to test body of your advertisement. You should use same headline, but with different bodies. It will be just a matter of time before you discover what is most profitable content to use.

The third step is to test your price. All customers are price sensitive and if you cannot convince them that your product or service is not worth price, you will not make sale.

One of biggest misconceptions is that advertisers believe that lower price they offer, more sales they will receive. This cannot be further from truth! If potential customers perceive that price of your product is a lot lower than they had expected, they might think your product is of poor quality or a scam.

One of best resources on determining what optimal price for your product or service should be is Ken Evoy's book "Make Your Price Sell."

http://myps.sitesell.com/coolcash.html

Other things that you should considers testing are your web site layout, order processing, colour schemes, long copy vs. short copy and many other items you feel could affect your ad.

Once you get results back from your testing, you will get you advertising right down to an exact science.

I highly recommend downloading Claude Hopkins' ebook "Scientific Advertising" to help you fully understand this topic.

You can get it free from our web site by going to:

http://www.freecoolcash.com/ebook.html

Good luck and happy testing!