"But for the truly paranoid (or the criminally inclined) there are ways to surf the web anonymously. The Anonymizer service will act as a proxy between you and your ISP, and they claim that your information cannot be subpoenaed because they do not store it."

Proxy servers can be a threat to a normal user. It has been found that many proxy servers are operated by black-hat hackers and they sniff the information which gets through it thus confidentiality is compromised. Also proxy servers are extensively used in DoS,DDoS,DRoS attacks.
Be prudent before using Proxy Servers

Comments as always welcomed !