open source software

There is a discussion on LITA-L* right now started by someone beginning to examine OSS ILS (free licensed software used for integrated library systems). Open source and libraries seem to complement each other so well. Libraries using these systems always stress the aspects of collaboration and innovation involved. Since your ILS is the primary point of entry for the public to access library resources, it is a great bonus to be able to update and make changes for your specific needs. If you have used a OSS ILS, what have you found are the strengths and weaknesses involved?

Thanks to Jean Montgomery, from the Upper Peninsula Region of Library Cooperation in Michigan, for leading today's MaintainIT webinar, "Free and Open Source Software in Libraries". Thanks also to the many participants. It was great to hear about all of interesting free and open source software products being used in libraries.