There is so much online! I could spend my entire life searching online from birth till dead without doing anything else. Having so much information online is a good and bad thing. Good because everybody can read up about a subject. People can know more about the subject that interest them. But there is also a lot of crap online. This is where I have to decide when reading something online if it is ok information or crap. There is no directory for this. Everybody has to investigate this for themselves.
Another thing what can happen when I look for information online is that I keep looking and start going for parts of the subject I were interested in instead of the subject itself. Then I find something and Google that, and find another thing and Google that and so on and on. It’s a bit like diarrhea, it goes on and on. This is when information over flow comes near.
The best thing to do when researching a subject online is:
to have a list of keywords I am going to look up
to set a time limit on my search
to go for good information and not crap ones
to be sure that my source is reliable
to read a lot of different opinions on the subject and than I form my own opinion on this subject.