Can I add to the OP, the debate here is whether the role of SEO is facing a nightmare challenge from facebook, twitter, and such, right?
If that’s the case I agree with OP’s comment on the issue. Social media is going downhill not SEO’s, if you check out blekko.com, you’ll see that there are new innovations in ways of providing search engine services. But I see increasing comments about how people find less and less interesting things to do in the social media.
: other than gaming