[drakaal]

I picked those examples because both are looking at those as features not as core to their business. Google is trying to make Social a core of their business.

Facebook is building a search engine. They are very proud of their "natural language" graph search. If they expand that to web sites they will likely fail.

Apple is starting to look at social with things like Facetime. But they are looking at it as a feature not a core business.