If you do not know, three of the UK largest ISP have signed a deal with Phorm, previously known as 121Media who where responsible for putting rookits on users systems.
What is phorm, phorm use DPI Layer 7 to snoop on everything you do, then targets you with what they call "Relevant Advertising", they also have a website called "WebWise" which is an anti-philising system, this already happens in IE7 and Firefox, there is also free software that does the same thing.
Even if you opt-out of the ads(not sure whether it will be opt-in or out, by default)you data will still be profiled and sent to their servers in China and/or Russia, not doubt to be sold on for a profit.
More information can be viewed at the links below.
BadPhorm - When good ISPs go bad!: Welcome
Cable Forum - Virgin Media customer support and community forum
Cable Forum - Virgin Media customer support and community forum
BT, Webwise and interception of nearly everything you do on the Internet
The Phorm files | The Register
Deep packet inspection - Wikipedia, the free encyclopedia
BT conducted secret trials on 108,000 customers, which is illegal.
__________________
Learn more about Virgin Media, BT and Carphonewarehouse deal with Phorm and how this affects your privacy.
http://www.badphorm.co.uk/page.php?2
Still not convinced, see
Here
I want nothing to do with Phorm, in anyway, shape or Phorm.