If you are interested in privacy and freedom on-line then there is quite a few simple steps you can take to minimise what people know about you so they can sell your personal information to advertisers for example.
There is a lot in the news about how facebook is taking over, collecting all manner of personal information which is then use to target you with adverts, friends and suggestions. If you don’t want this then maybe consider switching to a more privacy friendly social media network, and get your friends to switch too.
There are lots of options here, I am using Diaspora. This is a decentalized social media network, by this they mean that rather than having a large server or server farm., there are independent servers called pods, you can either join an existing pod, and accept the terms laid down by thats pod owner (podmin) or set up your very own pod, where you are in FULL control.
If you use e-mail at home then you should maybe consider who can read your e-mail and how you can be sure the person who has sent an e-mail is really that person.
One answer is to use gnu privacy guard. This has two main components
- Encyption – This is good for sending private and maybe confidential information to people.
- Signing – This is good if you want to ensure that the person getting the e-mail knows it is from you, It works on trust, you sign a persons key after verifying with ID that that key belongs to the person who is giving you a copy of the printed key. A key is unique to that person.
Another alternative is to use services such as Protonmail which has privacy and encryption built in.