In Goldman's view, the very popularity of the site stands in tension with its goal of radical openness. The freely editable nature of Wikipedia has made it a canvas upon which vandals, spammers, and pranksters can paint at will.--Goldman
Clay Shirky (Here Comes Everybody) argues the oppositte: that enough people care about wikipedia to prevent it from devolving into chaos, which is what would happen if nobody cared.
If there is any subject that optimists and pessimists love to bang heads over, it's the Internet. To follow the experts, we're either on the cyber-road to utopia or going to alt-hell in an iPhone app handbasket, depending on what day of the week it is.
This is a review of Clay Shirky's book, "Here Comes Everybody" in which he describes the dramatic impact the internet has, and will continue to have on how we learn and communicate. This book (and review) will give you some insight into how your children may be using these technologies. But it should also raise questions about how we, as practitioners, can use the affordances of the new tech to improve our efficiency, effectiveness, and efficacy.