Are you talking to students about the un-deletability of files?
1More
Cool Cat Teacher Blog: 122 For You: Cool Cat Teacher's Favorite Apps, Software, and Sites - 0 views
1More
Cool Cat Teacher Blog: Why Schools shouldn't use Google forms for anything private (Les... - 14 views
2More
Cool Cat Teacher Blog: Facebook Photos: Your Delete Doesn't Mean "Delete" - 13 views
1More
Wikinomics and The Cool Cat Teacher | Make IT Happen - 0 views
1More