i've been wondering for some time now just what i should be doing with social networking sites. wife got me to join facebook--against my better judgment at the time. someone else got me to join linkedin. i won't touch myspace.
once in a while, i would accept a friend request or set my status to something inane, but recently i decided i would use facebook as something of an aggregator, similar to google reader. i figured i could follow the work or goings on of interesting people. however, i wonder if that is an appropriate use of the site. i sent a friend request to a celebrity of sorts, who promptly responded with a polite 'do i know you?' (an entirely appropriate response for someone who uses facebook for private friend and life tracking).
so what is the purpose of facebook? i don't find anything particularly redeeming about it other than a way to sell ad space. what are people's expectations about the meaning of 'friend' on these sites?