A couple of weeks back, I found myself in a discussion with a couple of friends about searching on the Internet and how easy it is to get caught up in a filter bubble and not realize it. To put not too fine a point on it, because the big search engines (Google, Bing, and so forth) profile users individually and tailor search results to analyses of their search histories (and other personal data they have access to), it's very easy to forget that there are other things out there that you don't know about for the simple reason that they don't show stuff outside of that profile they've built up. If you're a hardcore code hacker you might find it very difficult to find poetry or the name of a television show you saw once unless you take fairly drastic action. The up-side of this profiling is that, inside of your statistical profile search results are great. You can find what you need, when you need it. But outside of that? Good luck.
The point of the discussion was that there were ways that we could escape this filter bubble through application of self-hosted software and a little cooperation.
Ironically, searching through my conversation history I can't seem to find the thread in question so I'm relying entirely upon on-board storage (as it were). So, go ahead and laugh while I geek out. First, a little bit of Internet history.