I received a mail from google and it was related to the adsense account. The mail is as below.
We’re writing to let you know about the upcoming launch of interest-based advertising, which will require you to review and make any necessary changes to your site’s privacy policies. You’ll also see some new options on your Account Settings page.
Interest-based advertising will allow advertisers to show ads based on a user’s previous interactions with them, such as visits to advertiser website and also to reach users based on their interests (e.g. “sports enthusiast”). To develop interest categories, we will recognize the types of web pages users visit throughout the Google content network. As an example, if they visit a number of sports pages, we will add them to the “sports enthusiast” interest category. To learn more about your associated account settings, please visit the AdSense Help Center at http://www.google.com/adsense/support/bin/topic.py?topic=20310
For more information about interest-based advertising, you can also visit the Inside AdSense Blog at http://adsense.blogspot.com/2009/03/driving-monetization-with-ads-that.html
We appreciate your participation and look forward to this upcoming enhancement.
The Google AdSense Team
This mail is self explanatory and for the people who have trouble understanding, it simply means that people are being tracked online and the tracking is going to be made use of for advertising campaigns. This is what Google wants to call Interest-based advertising. Although the name is new, it has always been under discussion and is also called behavioral advertising.
An internet users behavior online is tracked and based on his interest there are advertisements that would be served to him. You can read more about behavioral advertisement in this article – “behavioral advertising program“
This now seems inevitable, the interest based advertising to the masses.