I have never noticed this but what is the difference in these 2 bots? What is the adsense bot looking for? 66.249.66.229 [crawl-66-249-66-229.googlebot.com] United States Google Adsense Agent String: Mediapartners-Google/2.1 66.249.66.229 [crawl-66-249-66-229.googlebot.com] United States Google Agent String: Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html) Is this looking for infractions? Is it normal for it to come around?