At Guardian News and Media we collect different types of information about our users for three main reasons:

1. To help us to improve the services we offer.

2. To provide personalised services unique to individual users.

3. To use anonymous details about our users to sell appropriate advertising space on the site. This might mean showing an advertiser how many users we have on the site; it does not mean sharing an individual's details with an advertiser. Where we collect registration information from an individual, we will never share that individual's information with a third party, including an advertiser, without that user's explicit permission.

For more information on our privacy policy pleas go here.

http://users.guardian.co.uk/help/article/0,,933905,00.html