Maine Fiber Company and MRV Communications will host an educational session at this year's Annual MTUG Conference to be held on May 31, 2012 at the Holiday Inn in Portland, ME.   The session will provide participants with information and tools which can be used to determine whether leasing dark fiber, and lighting it with your own optronics, is the right solution for your organization.  As MFC's stimulus-funded fiber optic infrastructure (a/k/a Three-Ring Binder) nears completion, enterprise and public sector organizations may find surprising economies of scale in using this approach.