Improving your stats in any, or preferably, all of these three key areas will increase your Adsense earnings.

Impressions are the number of times your web pages with Adsense ads have been viewed. You improve impressions by creating more traffic to your web pages.

Here are several ways to increase traffic to your pages:

- Create more web pages, with relevant, focused content

- Create more links to your web pages

- List your website/s under relevant categories in more directories

- Set up a directory of relevant sites on your website and accept relevant reciprocal links

- Write relevant articles, with your site information in the 'resource box' at the end of each article, and submit them to article directories

The next area that will improve your earnings are increasing your ‘Clickthroughs'.

Clickthroughs are the percentage of viewers who click on your Adsense ads. You can increase Clickthroughs by increasing the relevance of Adsense ads on your site, and by tweaking the format and placing of your ads.

Although you can't dictate which http://google.com Adsense ads show on your site, you can influence the relevance of the ads by maintaining a tightly focused website. If every page on your site focuses tightly on the site topic, its more likely that the Adsense ads will too.

For example, if every page of your site is about fishing, and the word 'fishing' appears several times on every page, its likely that your Adsense website ads will relate to fishing.

The best way to tweak your ad format and placement is to invest in an Adsense Tracker, and test, test, test! People who have done this tend to suggest that the best format is the large rectangle, with background and border the same color as the page behind it, so that the ad blends into the page.

The best placement is towards the center or top left of the first screen of the page. Try these suggestions first, and then track and test, to be sure of what works best for your pages.

The next way to make money with Adsense income to generate effective CPM.

Effective CPM is a measure of your average earnings, per thousand clicks. You can increase your Effective CPM by selecting topics that attract high bids from Adsense advertisers, and building pages and whole websites on higher paying topics. Look for top paying keyword adsense words to use for your campaigns.

Although Google doesn't release information on Adsense bids, you can get a good idea of the top paying topics by looking at information on Adwords bids, or, for that matter, bids on pay-per-click search engines like Overture.

There are a number of keyword research tools available, both free and paid, that can help you find high paying topics.

So now you have the basics of increasing your Adsense income. Here is the basic formula:

- Build pages and websites on high paying topics for the best Effective CPM.

- Format and place your Adsense ads for maximum Clickthroughs.

- Promote your sites to drive targeted traffic to your Adsense web pages for maximum impressions.