When it comes to AdSense interest based advertising or IBA a lot of myths and speculations are made in regards to its effect on your revenue. Publishers argued that showing Ads based on the previously visited websites of a user Ads would not perform as good as content targeted Ads. So how does interest based advertising effect my revenue? This question was based on speculation until 10 days ago. Since then you can now see in your AdSense reports how interest based advertising performs on your website. Previously these were included in contextual earnings. Now if you want to see how much you're earning from IBA, here's how: 1. Under Performance tab, click on the 'Accounts by entire day' drop down 2. Click 'Targeting types' under this drop down 3. In the column drop down select 'Ad requests' instead of "page views' You should see data broken out by contextual, IBA, and placement. My stats for January from the new report are very promising: CPC prices for IBA are 164% higher then for contextual ads RPM are 338% higher for IBA then for contextual ads Conclusion: For those of you who aren't opted in, I'd highly recommend reconsidering opting-in and tracking the results. Regards StarBuG