If you haven’t heard of Tor, it is alternative internet - one with privay in mind. I’ve recently started to watch a lot of technical talks online. The two main guys behind Tor are some of the best speakers I’ve seen. They describe in great detail how open source works and the myriad of open source projects around Tor in this talk: and in an older talk they describe how countries have tried to censor Tor and how they have combatted some censorship (interesting for the technical measures deployed):
Tor, (or The Onion Router) is a service which connects people all over the world with one aim: privacy. Tor protects from traffic analysis, basically where you have been. Benn to you Banks website? Feel like buying something off Amazon or Ebay? Your behaviour online is by no means private, you hand over your numerical address, browser details, country, city, versions of which plugins you use, where you came from, just to name a few.