How do you tell when there is a really old elephant in the room – maybe so old that people tend to forget it is there? Here is one way: if someone writes you an open letter notifying you. In the case of open source ILSs, maybe the ILS Customer Bill of Rights was a missed wake-up call. Maybe these were also missed:
- http://www.extensiblecatalog.info/?page_id=2, and
- library thing and aquabrowser.