The Internet is full of BS, but censorship is far from the best solution, as it is an instrument that could be easily used to commit abuses against freedom of speech, and to turn the Internet in another corporate mass media of communication to(according to Captain Obvious): bring biased facts to support the interests of government and corporations.
Do you read tabloids with cheap rumors about actresses? Do you watch or read ridiculously biased and manipulated media coverage? Remember, if the Internet is full of similar or worse things, it is because there are people that read them. It is here that intelligence enters: the capability to see the judge which one is closer to reality: a lies-flooded "unbiased" CNN(or any other corporate media) report on Iraq or an Indymedia admitedly leftist report on it. In the Internet you have the right to choose what kind of bias would you like to read on something(In my opinion the concept of imparciality is just an abstract and unreachable concept, there is always a point of view when an information is passed, but in some cases it is really discrete), in TV you choose where would you like to hear lies from. That's the difference, although it brings worse things then corporate media, it also brings a space for questioning the "unbiased views" of those and for countering them with opposing world views of what they wish us to believe in.
In the end, everything depends on us, if there is a site that claims that the Middle Ages never existed for example, but everyone boycotts it, it will suddenly make its creator disappointed, until he decides to take it out. Would there be "White Power" sites and forums if no one browsed them? The Internet is a mirror of human ideas, emotions among other things, where the most "absurd" and mainstream conflict themselves, and where those not deserving of being there should simply be ignored.
But that is far from happening, with the number of visits on sites that spread gossip about famous people, with the sales of that cheap literature, with the more cheesy conspiracy theory ever invented, called "Da Vinci Code" and with the amount of useless blogs spreading(Thanks to the "Voyeur" that is slowly becoming a mainstream tendency). But we are not forced to access them, that is what makes Internet different from TV(Where you have to choose between a limited amount of channels and consent to their programs). Then if you dislike the worst of it, you are not forced to see it(Of course there are some

spams, banners and popups around, but nothing a decent browser like firefox can't solve with some extensions).
Books, as an way of organizing information, will never become obsolete, perhaps they may receive new forms like E-Books for example, but few places have the organization, uniformity, and consistency of a book. Most site contents are at best superficial and sometimes the informations will contradict themselves.