"friends" on social networks

I wanted to get some opinions on what friends are on social networks. Owning a facebook, I have 154 friends. But are these people really true friends???
Looking through the list i notice I have many people I only met once that I never talked to. I also have alot of people I used to be good friends with but that moved or such, I talk to some of these people but not all.
Now I look at the definition of friend and here is what I find:

1. A person whom one knows, likes, and trusts.
2. A person whom one knows; an acquaintance.
3. A person with whom one is allied in a struggle or cause; a comrade.
4. One who supports, sympathizes with, or patronizes a group, cause, or movement: friends of the clean air movement.

To my great surprise I see that friend can also mean, an acquaintance (definition 2).
By that definition all my "friends" on facebook are friends.

I can now look at the first definition which for me is the most interesting and the most true, a person one likes and trusts. After looking through my list a good 70% go away, leaving about 45 friends.
My question is what do you consider a friend? Do you think this term has become overused and lost its initial meaning? Do you believe this is a good thing or is it more negative?
thank you very much

What an eventfull day!

Well yesterday was filled with drama, pain and happiness.
Time for a little recap:

First thing in the morning I go to my friends house for us to film for our biking movie. At his house i get some much needed parts for my bike for free (two new tires, one new wheel, and a brake lever). We then go ride at the local skate park and a grandpa was taking pictures of us and the kids were amazed by some of my friends.

We then head out to some dirt jumps, my friend falls and rips a chunk out of his chin. I then bike home (one hour ride in hills) and relax for a bit.

I then leave for a party, pick up my friend and my girlfriend and just when we were going to take the exit onto the freeway, a guy on a bike falls right in front of us, breaking his arm.
We then park the car to make traffic avoid him, call 911 and make him confortable. About 4 minutes later, a Marine comes with medical equipment and starts to take care of the man. A couple minutes later, ambulances come. We leave our spot to the ambulance and head out to the party.

Next comes drama!
Well, my friend (if you remember this post: http://cokeandmenthos.blogspot.com/2008/03/dazed-and-confused.html, its about the same two guys)
loved this girl, and now he says he is over her but he still has feelings for her. The girl likes my other friend, and well, they ended up going out.
This was problematic because one friend was somewhat "stealing" (even though not really) my other friends girlfriend. We told the guy who didnt know and he seemed to be ok with it.
The party kept on going, my girlfriend had some troubles as well as my friend which made me feel really bad. I just felt as if my life was too good and as if i did not have enough problems... I try to make up for that by helping people with their problems, a lot of people call me their psychologist :P.
Well the rest of the party was fun and i came home this morning just to do homework! Yay???

I wont forget the daily comic, no worries:

Dazed and Confused

Aside from being in the lyrics of a song i like, there seems to be alot of hate around me these last days.
Some of my good friends got into a fight, one guy got dumped a while back and theres the problem now hes creating a girl problem. Drama drama drama! (hate it)
Well anyways a little concert is coming up, and im going with 3 other people who ironically are the people who are currently having problems, and now im stuck in the middle.
Akward 1 hour and a half ride much?
But hey! I know and like all of them quite alot, there is another problem!

Well now im getting pulled into the drama, girl problems.
I have had a girlfriend for over a year, and well she sometimes makes up stuff and twists things to make them as horrible as possible and she ends up concluding that i hate her etc...
And now im wondering if i should dump her?
Advice always appreciated!!
Thanks for the long read ;P