The first thing you can do is use https://startpage.com as your search engine.
Every time you use a regular search engine, your search data is recorded. Major search engines capture your IP address and use tracking cookies to make a record of your search terms, the time of your visit, and the links you choose - then they store that information in a giant database.

Those searches reveal a shocking amount of personal information about you, such as your interests, family circumstances, political leanings, medical conditions, and more. This information is modern-day gold for marketers, government officials, black-hat hackers and criminals - all of whom would love to get their hands on your private search data.

As a rule of thumb I would say as long as you don't publish only stuff that you could also shout out in public or say on the radio you are safe. A lot of the stuff happens just because the people are stupid (for example publicly going on about your boss on facebook)

The basics on privacy is good start. I call what you listed as common sense. I have customers that are security experts and lock down bank computers. They tell me good hackers know how to probe a system for weakness. A friend of mine wrote the bank protocols for different levels of bank intrusion threats. He had so many Information Technology guys wearing 24 hour beepers for high level hacker attacks, they eventually got rid of him. He made the IT guys actually do their jobs at the proper level. Key point....your information is not that hard to get. Just google kroll.

A Simple advice on protecting your privacy is to not publicize your contact details that you think might infringe your privacy..
A good host can protect you from hacking and such other things..
To protect your readers' or, subscribers' privacy, just don't do anything that could compromise it - like selling their information, publicizing it or, addressing their contact details in public.
Other than these you shouldn't really be worrying about Privacy problems if you have taken enough care not to sacrifice yourselves.. :)