The eXtensible Catalog is an open source software project that has the potential of meeting the needs of the 21st Century OPAC.
The eXtensible Catalog (XC) is open source, user-centered, next generation software for libraries. XC provides an alternative discovery interface for users and a set of tools for libraries to manage metadata and build applications. XC comprises four software toolkits that can be used independently to address a particular need or combined to provide an end-to-end discovery system to connect library users with resources.
via Consortium of Academic and Research Libraries in Illinois (CARLI)

[...] and algorithms. But Google and others demonstrate that it is possible. It is the direction the 21st Century library MUST go. 40.828666 -72.699766 Share this:TwitterFacebookStumbleUponRedditDiggPrintLike [...]
By: Catch the Vision of the 21st Century OPAC « Thoughts on Technical Librarianship on August 15, 2011
at 1:19 pm
[...] Posts Findability and the Library OPACWeb 2.0 Vulnerabilities FRBR in a NutshellThe eXtensible CatalogCatch the Vision of the 21st Century OPACThe Necessity of Authority [...]
By: Findability and the Library OPAC « Thoughts on Technical Librarianship on August 15, 2011
at 1:21 pm