Rockin’ links to research out of Stanford:
… today’s students are writing much more than previous generations, and in a profoundly different way. Consider these findings:
An amazing 62 percent of student writing is outside of school. That’s a giant paradigm shift from the pre-Internet age, when almost all writing was for the classroom. Not only are students writing more, they’re writing things they truly care about and want others to read. And they’re writing in a lively, competitive and very public marketplace (text messaging, Twitter, Facebook, etc.) that hones their rhetorical skills and teaches them how to influence their audience. Trunk’s loveably brazen conclusion: “So everyone can just shut up about how no one can write anymore.”
details – For Your Approval – Another reason employee communication is changing for good

Perhaps it’s the mobile phone that’s ruining writing.