Teachers should use Free Software
This article suggest that educators and especially teacher educators should use F/OSS whenever possible and that the freedom offered by F/OSS can outweigh shortcomings in the software itself.
Training teachers and students to use a piece of software makes that software more valuable. Vendors know this. Business sense, not altruism, is what drives deep discounts on software for education. I once spoke to a vendor of an online grade book who, upon learning that I train teachers, was very interested in my using it in my classes.
The article suggests many alternatives to proprietary software and how they may be used.
http://www.linuxinsider.com/story/57760.html