Advantages of the Google Adsense system
Google Adsense is simple to use and manage. Once approved, displaying ads on your webpage does not take time and requires minimal technical knowledge.
Google Adsense is very smart about ad selection. The ads that are displayed are only those that are relevant to your content, and Google has strict quality control on the general quality of tha ads.
Google Adsense uses text-only ads. Far from being low-tech, text ads are more effective than flashy ads. The clickthrough rate of text ads is proven to be higher than that of animated ads! more clicks equals more money, and text ads equals more clicks. Also...text ads very "low weight" and very fast loading. The Adsense program will not slow your website, or your visitors, down. You can also use graphic ads.
Google Adsense allows you to ad a Google Search box to your website. By doing this, visitors to your site can search the entire internet from your website itself. In a way, your site becomes a host to Google and you make money.