If you use Google services, you could become an ad next month
 

Google users, you're about to become shills. A major update to the company's Terms of Service agreement today could have some users' profiles showing up in ads across the web. These "shared endorsements," as Google is calling them, leverage any reviews, comments, +1s, follows or stars a user may ...

http://www.engadget.com/2013/10/11/g...=rss_truncated