I would agree that the free exchange of ideas is the great promise of the internet, but I disagree that Facebook or any high traffic website has any responsibility to blindly post what is popular.<p>That kind of thing is relegated to smaller and active communities that can decide for themselves what content to exchange.<p>A highly trafficked global community has to be managed differently, and a system that is completely democratic will be gamed because of the eyeballs it has in front of it.<p>Facebook, Digg, Reddit, Slashdot, etc. are all sites that have been heavily targeted by astroturfing campaigns.  They&#x27;ve all attacked that problem in their own ways, and they all have failed spectacularly.<p>One way of attacking the problem is curating popular content.  It works but it doesn&#x27;t.  Show me the website that has more than a few million daily visitors that has democratized information, and I&#x27;ll show you a website that is being gamed by marketers.  (Seriously... because if it isn&#x27;t already, I&#x27;d love to make a quick buck)