Awoke, it would benefit you to learn about PGP/GPG encryption... You can encrypt files with your private key, so that only you can decrypt it. You can exchange public keys and send encrypted messages to others. So if you use GMail, for example, you can encrypt a message using my public key, so that only I can decrypt it with my private key, and no one but us is privy to the contents of the email. GMail simply becomes a carrier by which random data (well, random to those without the key and the password associated with it) is exchanged between two parties. Seriously, if you are worried about this kind of privacy, you would do well to look into PGP and Tor.