The dilution of the word "friend"

Conventionally a friend is someone who you hang out with, do things with, help out if they need it, and enjoy spending time with.  Obviously the degree to which we are friends with different people varies on a number of things, but I think the first sentence is true for all of my friends.  The advent of Facebook or social networking websites in general has, in my opinion, significantly diluted the word friend to include just about any random person that you have any interaction with.  Previously if I met someone at a party or somewhere and we discussed meeting up the act of simply connecting was a filter to determine who really wanted to hang out.  If someone said that they wanted to hang out simply as a courtesy they would likely not make a strong effort to get in touch, which is fine by me.  Now with the prevalence of social networking everyone immediately connects on Facebook, most often, and sometimes will do so during the initial meeting.  Jimmy Kimmel had an interesting monologue about people who have several hundred to a thousand plus friends on Facebook.  He pointed out that your true friends are those that will come out if you post, "moving today can anyone come and help?"  My true friends are probably no more than about 50 people and can be determined by checking who I call, text, and email (in that order) most frequently.  There are probably also a couple of dozen people that I don't have regular communication with that still fall into the true friend category.