my point is that facebook does not supersede google. as you assume saying cocacola vs pepsi.
google search superseded yahoo search and altavista search.
coca cola also does not replace DWP mainly because as much as people drink soda instead of water, they will ever hardly cook and bath in it.
so, the article talks about two ways to lure users. but they aren't exclusively.
my point is that facebook does not supersede google. as you assume saying cocacola vs pepsi.
google search superseded yahoo search and altavista search.
coca cola also does not replace DWP mainly because as much as people drink soda instead of water, they will ever hardly cook and bath in it.
so, the article talks about two ways to lure users. but they aren't exclusively.