The list of keywords expensive:

Per Click ($)               CPC ($)           Keyword

520.52                         97.44               domains yahoo

418.63                         79.81               domain name yahoo

145.71                         68.91                laser hair removal washington dc

119.63                         66.15                law lemon Wisconsin

135.94                         51.14                hair removal washington dc

493.73                         41.97               domain registration yahoo

262.02                         40.36                benchmark lending

438.23                         38.05                domain yahoo

330.50                         37.86                yahoo web hosting

121.27                         36.59                peritoneal mesothelioma

46.38                           36.55               ca lemon law

81.58                           34.13               best buy gift card

96.87                           10.31               adverse credit remortgage

234.33                         30.98               mesothelioma information

48.68                           29.77               law lemon ohio

54.31                           29.34               att conference call

82.33                           28.78               mesothelioma symptoms

36.88                          28.26               personal injury Solicitor

101.30                         28.23               att go

61.47                           28.03               accident car florida lawyer

159.00                         11.27               google affiliate

Adsense is one of the most common revenue generator for blogs and websites. Usually you can drastically improve your click through rate and overall revenue by ad position wise, by increasing the targeting of contents or by optimizing your ad units directly. Below I will cover the last point, how to optimize your Adsense unit with 8 simple tips:

1. Top three performing ad units: 336 × 280 large rectangle, 300 × 250 inline rectangle and the 160 × 600 wide skyscraper. Consider using the units if possible, but remember that other formats may be more suitable for your website design.
2. The most successful link color is blue. The fact is connected with the roots of the Internet where all major websites used to feature blue links.
3. Apart from the blue link, you can also use the color of links that match the pattern of your website (eg If you use green links make the Adsense links from the same color).
4. As a general rule, mixed (no border, same background) your Adsense units if your website has a bright color scheme and contrast (border, contrasting background) units if you use a dark color scheme
5. If the ad is placed in the content that you should avoid using temporary limits on outside content ad units can use the border to draw attention.
6. If your site have mainly repeat visitors (like a Forum), you can play the background color of your ad units to reduce blindness
7. Consider deleting "Advertise on this site"? message from your unit. This can be done on the control panel in the "My Account, turn off the" Advertiser Sign-Up "? features.

8. Test, test and test. Every unique website so make sure you test with different colors and formats and track results to fine tune your Adsense units.

In short, AdSense is an advertising service which is owned by Google, where site owners can place these ads on their situs2 earn extra income. Ads which appear various type, can be text, pictures, even video, but who must have all using the contextual system (contextual), where the ads will relevant or appropriate to thethe content page where the ad is placed . Consider the example picture below : 

 

All ads are stored on Google's own servers, so we do not need provides a special space in our server for AdSense, or upload certain files. Simply insert the JavaScript code which provided on our web page we have enjoyed the presence of AdSense ads on our site.

How Do We Get the Money?

As mentioned above, by putting AdSense ads on your site them, site owners get a chance to get
additional income. How do I? It is not difficult. Who need you, as owner of the site or blog, do is
wait (and pray) for any visitors who click on these iklan2. Yes, simply by clicking on it, automatically you, as an AdSense publisher, will get some money which share value calculated from the amount of the bid which has been determined by the advertisers (advertisers). Although there are other faktor2 affect, in general, the part and publisher obtained is 20% of the value of the bid.