You should all be aware that if you work at a large corporation, or a company with a firewall or IDS, that any site you go to or any message (e-mail, a post, etc) you send can all be viewed plain as day by your network admins.
Also the anonymizer can help hide your IP and may or may not cover where you're looking, but it can't do anything about clear text e-mail and posts.
Get a program like PGP to encrypt your sensitive e-mails.