The areas of greatest visitor interest on your webpages.
When a webpage is being viewed there are some universal reactions by your visitors to be considered. Certain areas of a webpage stand out to most people who will visit your website.
Some webmasters say that the top left corner of the page and the bottom right corner of the page are the most important, according to the frequency it is used on the Web. This is especially true of internal web pages.
Example:

- Dark Orange represents the hottest area of a webpage.
- Orange shows the areas next in importance for visitors.
- Yellow identifies areas of moderate interest .
- White shows areas with little or no activity.
- Grey are the neutral areas.
Eye paths
Keep in mind that this study focuses on areas of a webpage that produce clickthroughs. Here is where most visitors will buy your product or click on your ads.
I have found that this type of pattern can vary from page to page. Some pages with a large amount of text perform best when text ads are placed at the bottom right corner of the page. It all depends on the content of the webpage.
The actual path that the eye follows when viewing a page is better explained by following the link below.
Get more information from here.
