Plenty. In this TNR piece, the author shows how a Tweet from legal analysts Jeffery Toobin - that the individual mandate was doomed based on his analysis of the oral argument - conditioned the reactions of most other news outlets. A more measured response to the arguments just published in the New Yorker is getting less traction. This tells us something. Short superficial messages drown out longer thoughtful ones.
In 2301 we will be discussing the press soon. Technology matters.