
Google’s AdSense contextual targeting service is a great tool. It allows marketers to serve up ads directly to web users who are viewing info that has some type of relevance to that marketer’s product or service. For instance, if you were reading an online article on woodworking, an ad for Home Depot might pop up.
Sometimes, however, the system gets it wrong. Way wrong. How else do you explain this ad falling just below a news article about the Mumbai terrorist attacks last year?
“Terrorism: Pursue a certificate in terrorism 100% online. Enroll today. Ads by Google.”
Although AdSense gets it right more often than not, the mistakes are something to behold. Check out this list of the biggest bloopers from 2009 as compiled by The Business Insider.




















