Does AdSense affect site’s ranking in the Google SERPs?
Doing Google AdSense will not affect your web site’s rank in Google search engine results and will definitely not affect the search engine results we deliver. Google believes firmly in freedom of expression and therefore offers broad entry to content across the internet. Our search answers are unbiased by our own relationships with paying advertisers and marketers. We will still show search results in line with our PageRank engineering.
Adding the AdSense code in your site will definitely not queue your web pages for crawling by simply our main listing bots. While our boat (starting with ‘Media partners-Google’) will crawl content pages with regards to targeting ads, participation in AdSense will not increase the volume of pages from a site in our principal index.