Here are three tools that can help you reduce how much paper and ink you use when printing materials for your classroom.
http://www.freetech4teachers.com/2010/09/3-tools-to-help-you-save-paper-ink-in.html
DawsonITE is a blog devoted to Educational Technology. It's compiled by Rafael Scapin, Coordinator of Educational Technology at Dawson College in Montreal (Canada).