Adsense tips

AdSense Tip #1: Find your keywords

Before serving ads on a web page, check its keyword density. A free and advanced tool for finding the most prominent keywords in a page can be found here: SEO Density Analyzer. Copy the most important keywords to a text file ([web page name]-adsense-keywords.txt).
AdSense Tip #2: Improve your keywords

Get keyword suggestions from Overture Search Inventory and from Google AdWords Sandbox. Get new keywords that can help you improve your ad relevance. Enter the keywords from [web page name]-adsense-keywords.txt and save the suggestions to [web page name]-adsense-suggestions.txt.
AdSense Tip #3: Keep your website focused on a theme

Use the keyword suggestions to enhance your web pages and to build theme-based content. And also try to get your keywords into the anchor text of your incoming links as much as possible. Don't forget that Google AdSense is keyword-targeted advertising: Google AdSense bases its advert topics on your websites content, this means that content-rich websites of a popular topic should attract a large amount of ads.
AdSense Tip #4: Write a new page every day

One of the best tips is to add a new page to your web site every day. The more content you have, the more visitors you will get. Put an Adsense unit on each and every content page of your site. But where? You will find more about that from the next AdSense tips.
AdSense Tip #5: Choose the right AdSense format

Wider formats are successful because the ads are compact, easy to read and are complementary to the content. The top three AdSense formats are:
336x280 large rectangle
300x250 medium rectangle
160x600 wide skyscraper

Another successful format is the 468x15 horizontal ad links, that can be placed under your navigation bar