When deciding whether to incorporate Adsense into your website there are several factors to consider. Many feel that it diminishes their brand, whilst others see it as a useful tool for visitors which creates revenues and makes their content profitable.
The choice can largely come down to the commercial goals and the purpose of your website. Many businesses who sell products decide to place Adsense adverts within their website. This would appear to be a strange choice, opening up opportunities for rivals to promote their service or product to your potential customer base.
Many publishers claim that they are only doing this to allow companies who provide ancillary services to advertise. These claims have some merit, as those who for example sell pillows could provide those who sell bedding with an opportunity to advertise.
Although this would make sense, there are still those online retailers who allow rivals to penetrate their audience. Many claim that there are still benefits in allowing your direct competitors to advertise within your website. One of these is that ultimately if visitors wish to see your competitors they would be able to see them through a Google search regardless. This may be true however the thought of an established brand like coco-cola having a Pepsi advert in their website is not even a possibility.
Another factor which is considered in this situation is that publishers do not feel that Adsense is effective in making conversions. They feel that visitors who would click on adverts are not highly qualified customers, as they would quickly navigate to the materials or products that interest them if they were.
Despite Adsense being a questionable choice for online retailers, it is surely a good supplementary service for other varieties of online publishers. For example, a website which provides a free service like dictionary.com gets high levels of traffic, and is able to make their service profitable through adsense. This has been the case for Bloggers who originally provided content free of charge, being unable to reach the scale that is necessary to contract with advertisers directly.