Adsense Preview Tool
The Adsense preview tool is a free handy little tool which allows you to preview possible ads that may occur on your website.
The tool can be downloaded from the Google site below:
https://www.google.com/adsense/support/bin/answer.py?answer=10005&topic=160
Using the Adsense preview tool gives you a good idea if your content is going to allow Adsense to generate relevant advertisements for your visitors. If you notice irrelevant ads are showing then you can modify your content to include some extra relevant keywords.
The good thing about using the preview tool is that there is no risk of clicking on your own ads, which can incur penalties. This is easily done with ads which are being tested on your website.
You can also sample different ad formats and color schemes before placing them on your site, which can be a huge time saver as you don't have to keep regenerating the code.
The preview tool also lets you geo-target the ads. So you can for example see which ads users in different countries will see from your website. This is impossible to do just by testing the ads on your site.
I highly recommend using the Adsense preview tool if you have a new website or are modifying your website layout. It will stop the risk of clicking on your own ads and of course will save you considerable time as you work out exactly which formats and ad colors best fit your site.
