I think most people are missing the whole point as to why these social networks are gaining market share as far as views go. In the case of twitter its no longer for the social aspect of the service, but moreso for the speed of delivery when it comes to new information.
Its the world in real time
But this too will pass. At the end of the day the internet is just like real life and the non verified, unstable ramblings on networks such as twitter do not provide the solid feel of acurate information like traditional static websites. So when people need a real answer they go to a real source... google
