Social Media Hurting Writing And Thinking Skills for PR Professionals?

Musician John Mayer recently twittered "Suffering cerebral atrophy. Since I've been communicating in short pulses, I've been writing lyrics the same way." & "The single-serve idea is killing my writing. Laying off a little in the coming weeks. Need books, thoughts, a sequence of ideas that build."

Question--do you think that apps like Twitter, Facebook, Blogspot, etc. have taken a toll on your ability to write well?

Next Question--do you think that these apps have taken a toll on your ability to focus?

Let us know what you think?