Google and Youtube this week launched what its calling “internet-based advertising”.
Interest-based ads add a new dimension to ads on Google. Unlike ads that are completely contextual, interest-based ads “associate categories of interest…with your browser, based on the types of sites you visit and the pages you view“.
Google believes that it can use this new dimension to serve more relevant ads. But it also knows that interest-based ads are going to raise privacy concerns, especially when it’s rolled out across the entire AdSense network.
Yesterday, Google began notifying AdSense publishers and informing them that they may need to change their privacy policies.