I just never bothered with any of it, it seems such a nuisance and waste of one's time. Does this make me weird?
Yes you are weird, unless this is a great example of "trolling".http://en.wikipedia.org/wiki/Friendship
There are many numerous reasons why humans (most mammals in fact) and most bird species amongst many others have "friendships" (to simplify I will use the word "friendship" to cover everything in the Wiki article and its many sub-categories).
The obvious ones are to gain the best chance of survival of your offspring (remember that Humans exist because we procreate), even in modern societies a single mother/father will have much more difficulty raising their children, this has 2 obvious knock-on effects, having further children is even more difficult reducing the ability for that parent to spread their genetic code, and the children that they do have will be worse off than those with 2 parents - we can only imagine how much more difficult it would have been 10 or 20 thousand + years ago.
There is much more information on the subject than I wish to type up, so I refer you to the Wiki article linked above.
What does one get from such a relationship, it can't be advice or information since there is google and books...far superior sources of wisdom and knowledge.
I would disagree totally. If you were presented with 2 forms of information or advice, you should not give them the same degree of "trust" about which is the most accurate information or the best advice. Also it is often the case that the evidence or advice that is the best "presented" is not actually the best, it just seems the best, and again "trust" and "truth" are all relative, this is one of the main reasons why religion and language (primarily) spreads through families, you have "trust" with your parents and other near relatives and family friends and personal friends and as such you will be far more likely to believe what a friend or relative tells you than a random stranger (especially when young), this is why an awful lot of young people refuse to believe their school teacher over their parents, there is a higher degree of "trust" with their parents.
This "trust" is a biologically defined part of both nature and nurture and along with our sociability and language is a large part of why Humans have evolved to be so much more intelligent than other animals on this planet.
If you had something wrong with you medically, you could look on Google or you could ask in forums but you would be a fool to not see your GP, your GP can look at you, ask you detailed questions, run tests and so on that simply cannot be done effectively or within a sensible timescale, or even at all in the case of tests.
Anyway, you are here asking us real living breathing Humans beings with our own life experiences and opinions what we think "above and beyond" what Wiki says, we will all likely give you a different answer because we are all different, this is why I personally favour asking people questions on an online forum vs FaceBook, there are far more reasoned and lengthy responses and counter arguments because it is far more like a real conversation than FaceBook, however... compared to a discussion with a few friends in the pub, direct human conversations win hands down because you can gauge by body language, facial expressions, voice tone and many other expressions as much about what they are trying to say as what they are actually saying.
You could look up the most popular beer in your country on Wiki or via Google, but that wont tell you much compared to asking some friends in the pub which one is their favourite and why, or how they think that it compares to the other beers for sale in that pub and how they are different - real Human interaction on the personal level is of huge and significant importance to most people.
If you dont feel the need for "friendship" with people in person, then your brain is likely wired up differently from the norm - this is not necessarily a bad thing and is not meant to be derogatory, although it would be better if you knew "why" you dont have any friends or even feel the need for them.