Source: NYT > Education
Article note: Schools (and, frankly, employers) should not be in the business of policing online conduct any more than they should police speech in homes, bars, or coffee shops - if it crosses into illegal conduct, it becomes actionable by larger societal mechanisms, but otherwise they should fuck right off.
The legal momentum for that position, at least for public schools, might be enough to follow through.
A lawsuit against the University of Tennessee questions when schools can discipline students because of their online speech.