(1) ESRI Education Manager Joseph Kerski wrote a short essay on
data quality that can serve as a useful tool for discussions in class and in your workshops:
Is your data "CRAAP?" A schema to evaluate information-- Currency, Relevance, Authority, Accuracy, and Purpose:
(2) Reminder: The upcoming free Penn State geospatial MOOC (Massively Open Online Course) might be just the thing to nudge your colleagues into making web maps and into spatial thinking:
http://blogs.esri.com/esri/gisedcom/2013/04/25/mooc-maps-and-the-geospatial-revolution/