We are experiencing technical difficulties. I'll get more posted in this archive once those difficulties are resolved.
If you want to do something to protect your privacy while using regular browsers, like Firefox, you can check out NOSCRIPT which gives you more control over what Web sites can learn about you.
Search engines help us to find things on the World Wide Web. Most search engines exist not to help you find things but to allow the companies that provide the search service to data mine your searches and then sell your search history to clients so they can spam you. An alternative to getting your privacy compromised is to use the DuckDuckGo search engine.
If you'd like to keep your browsing history private you can get yourself the Tor Browser. Using the DuckDuckGo search engine is automatic with the Tor Browser, and by accessing the DuckDuckGo search engine from the Tor Browser you are pretty much guaranteed that no one can trace searches back to you.
Gnu Privacy Guard can help you to encrypt your data and preserve your privacy.
For those who need some help getting started with Gnu Privacy Guard there is Gentle GPG which does a lot of the work for you.
For the somewhat more advanced user who wants to protect his or her privacy there is the Tails OS. Tails is a live operating system that you can start on almost any computer from a USB flash drive or a DVD. It allows you to use any computer that will allow you to boot up off a USB flash drive or a DVD and it provides a lot of good security for your on-line activities. You can get it here.