You have chosen AdWords as a promotional mechanism for your website. You really did a good thing. In fact AdWords is trusted by millions across the globe for its ingenuity and the promotion it can do for your website. But you must know the exact methods of successful AdWords promotion so that you don't waste heavy amount of money and energy on promoting your website.
The first important factor is that you have to choose the right and important keywords. The key words play a vital role in your AdWords advertisements and promotions. If you don't choose the right key word you will have to suffer later. Then you must determine the cost of the estimated traffic from AdWords. Then decide the cost per click you can afford for each keyword and its estimation for daily traffic.
You must write your adverts with the keywords and title. This will prove a better option for web traffic. If you want to avoid wastage of money then you must turn off a particular thing called content matching of your AdWords promotion. Usually hinders of content match appears due to AdSense partner sites. Thus you must turn off the content search in the settings of AdWords campaign to avoid such confusions.
Another important thing for AdWords promotion is that you must continuously go on reviewing the amount of money for pay per clicks. You can also use both plural and singular version of keywords and then test the advert campaigns to find out which advert has given you the better rates of conversion and try to find out how it works. For better AdWords promotion you can take help of experts in these field like your friends or people whom you know has been using AdWords for sometime now. This will help you to over come mistakes you make.