Pay-per-click marketing is an advertising method that enables you to buy search engine placement by bidding on keywords or phrases. There are two different types of PPC marketing. In the first type, you pay a fee for an actual SERP ranking, and in some cases you also pay a per-click fee, meaning the more you pay, the higher in the returned results your page will rank.
The second type is more along true advertising lines. This type of PPC marketing involves bidding on keywords or phrases that appear in, or are associated with, text advertisements. Google is probably the most notable provider of this service. Google’s AdWords service, shown in Figure below , is an excellent example of how PPC advertisements work.

PPC

Example of ppc in google search

Determining visitor value
The first thing that you need to do when you begin considering PPC strategies is to determine how much each web site visitor is worth to you. It’s important to know this number, because otherwise you could find yourself paying far too much for keyword advertising that doesn’t bring the traffic or conversions that you expect. For example, if it costs you $25 to gain a conversion (or sale) but the value of that conversion is only $15, then you’re losing a lot of
money.

To determine the value of each web site visitor, you need some historical data about the number of visitors to your site in a given amount of time (e.g., a month) and the actual sales numbers (or profit) for that same time period. This is where it’s good to have some kind of web metrics program to keep track of your site statistics. If you divide the profit by the number of visitors for the same time frame, the result should tell you (approximately) what each visitor is worth.
For example, suppose that during December, your site cleared $2,499. (In this admittedly simplified example, we’re ignoring various other factors you would have to figure into an actual profit and loss statement.) Suppose also that during the same month, 14,990 visitors came to your site. Note that this number is for all the visitors to your site, not just the ones who made a purchase. You divide your $2,499 profit by all the visitors, purchasers or not, because this
gives you an accurate average value of every visitor to your site. Not every visitor will make a purchase, but you have to go through a number of nonpurchasing visitors to get to those who will purchase.
Back to the formula for the value of a visitor: Divide the site profit for December ($2,499) by the number of visitors (14,990) and the value of your visitors is approximately $.16.9 per visitor. This value is approximate because during any given month (or whatever time frame you choose) the number of visitors and the amount of profit will vary. The way you slice the time can change your average visitor value by a few cents to a few dollars, depending on your site traffic.(Again, the example is based on the value of all visitors, not just conversions, which might be amore valid real-life way of calculating the value of individual visitors; but this example is simply to demonstrate the principle.)
The number you get for visitor value is a sort of break-even point. It means you can spend up to $.16.9 per visitor on keywords or other promotions without losing money; but if you’re spending more than that without increasing sales and profits, you’re going in the hole. It’s not good business to spend everything you make (or more) to draw visitors to the site, but note the preceding italicized words.
If a $.20 keyword can raise your sales and profits dramatically, then it may be worth buying that word. In this oversimplified example, you need to decide how much you can realistically spend on keywords or other promotions. Maybe you feel a particular keyword is powerful enough that you can spend $.10 per click for it, and raise your sales and visitor value substantially. You have to decide what profit margin you want and what promotions are likely to provide it. As you can see, there are a number of variables. Real life is dynamic and eludes static examples.
Whatever you decide, you shouldn’t spend everything you make on PPC programs. There are far too many other things that you need to invest in. Popular keyword phrases can often run much more than $.10 per click. In fact, some of the most popular keywords can run as much as $60 (yes, sixty dollars) per click. To stretch your
PPC budget, you can choose less popular terms that are much less expensive but that provide good results for the investment that you do make.

Read in Next Article : Putting pay-per-click to work