A recent survey in the UK discovered that one in four Britons acquired broadband so they could get to the filth. (It may also have discovered, as several readers suggested, that one in three British broadband users lie to surveys about why they get broadband).
On a more serious note, the same article has some interesting insights into how blogging encourages narrow mindsets:
"Eleven people of like mind talk to each other. They had the same views before, they end up with the same views after. But every single one of those eleven people says 'I convinced 10 other people'. Then the blog-boosterism runs 'Aha, we have 11 people who each convinced 10 other people, so that's *110* more votes from BLOGGING! Feel the power OF THE BLOG!' In reality, nothing changed. The choir preached to itself. But everyone got to think that they were an influencer, a kingmaker, even if just for a tiny kingdom," observed Seth Finkelstein
It's not always like that -- I've stumbled across self-contained communities of friends that support each other warmly and graciously. But one does need to remember there is a great big world out there, and our information needs to come from multiple sources.