Does removing adsense from your website lower a websites google search ranking Just curious if google gives this incentives of ranking websites with adsense higher to those without adsense.
No they don't lower your ranking if you remove adsense. Many sites don't have adsense and still rank.
It wouldn't make sense if putting Adsense will affect the site's ranking in Google since Adsense is a part of Google.
It is very unfair if that is the scenario. Having those ads on your site might help a bit on indexing because of the bots that visits your site but they will not directly affects the rankings.
If your site is a big one with hundred of thousands visitor per day, adsense or other google ad products may have contribute your serp. Just think, that your visitors will finally bring more profit to their company, right? Just my two cents..
I doubt if Google would give any preference whether a site has Adsense on it or not, would go against their motto
Google Adsense for Content ads block the rendering of the page, if you use the default ad code (as Adsense provides it). In all browsers, but especially in IE6, IE7 and IE8, this has a real negative impact on the user experience.