Simply put, return on investment (ROI) is a percent that expresses how much money you gain for the money you spend. Or, in other words, how many times you gain back the money you spend. This percent shows whether investing in a business is worth the effort or not.

ROI is ROI = (revenue - costs) / (costs) * 100

Its essential that you also track your ROI. these tools are offered here at W.A with my-linker.

Since each keyword you use in your campaign contributes more or less to the overall ROI. Some keywords are by far better performing than the others. How you can distinguish the winners from losers?

In a perfect world you'd be the one to check the performance of every keyword, ad, landing page, and have plenty of time left to enjoy life.

Don't make nay mistakes as to include more keywords, ad groups, ads, campaigns, products to sell and so on, forget about it. By the time you come to manage more campaigns with hundreds of keywords each, you won't be able to keep track easily.

The purpose of this resource was to create awareness among AdWords advertisers about the common mistakes they can make with this network, and to eliminate frustrations that may emerge as you manage Google AdWords campaigns.