Visit this site to learn how Google make it very difficult to find information online: http://dontbubble.us/
I started noticing this years ago and was very frustrated because it seemed like no one else was getting it. Just visit the website site. The information is related very simply.
The also explains why the internet has the effect of feeling like one big echo chamber. Facebook does the same thing. Discovering alternative view points of views or perspectives is very difficult. Which make learning difficult.
If everyone agrees with you all the time and no one challenges you ideas you'll never learn...