OSS Watch has published a list of open source options for education that I think might be helpful to many of you.
This document presents options for open source software for use in the education sector. Some of these may have uses outside of education, but they are presented here in the context of their specific benefits to educational establishments, or their use in the course of teaching and learning.
The list includes proprietary software that the open source is an alternative to. Check out the entire list and learn about new open source applications that might be of use at your library.