>The unfortunate thing is that many software engineers fail to realize these are just tools and confuse them as being the ends as opposed to being the means.
Sometimes confusion may be good for engineers. If all engineers can clearly realize that they are just tools, it may frustrate someone's interest. With interest, we are happily using tools.
Yes, they sell our privacy. But I just want to know if the social networks can combine with the B2C websites, like amazon. Can it works? What will happen?