Before unleashing students on the Internet we need to teach them how to behave appropriately, avoid scams, be safe and how to be digitally literate. Digital citizenship is part of every classrooms curriculum, not just the responsibility of a tech class. Common Sense Media has a wealth of resources and lesson plans for teachers on digital citizenship.
The presentation below is a crowd sourced document of one liners of digital citizenship that can be used in faculty meetings, with students or professional development workshops. Add your own digital citizenship one liners: http://goo.gl/7mSvhK