ziomal.biz

The privacy requirements of Internet users can vary widely. Some divulge the most personal details of their lives on blogs and social networking sites; others want to remain as anonymous as possible. Users know they have control over what they push onto the Web -- but what about data that portals and other online giants retain on the back end? Online firms are piling up user data to get to know them better -- and serve ads based on keywords in searches and e-mails.