When I think about the library "catalog" I think that it will contain more than just metadata about library materials but also the materials themeselves. Think mostly books, journal articles, encyclopedia articles, definitions, images, data sets, etc. Moreover, the library "catalog" will enable people to do things with the items in the collection. It is more than just find and get.
This is the first of a three-part series called TFIDF In Libraries, where “relevancy ranking” will be introduced. In this part, term frequency/inverse document frequency (TFIDF) — a common mathematical method of weighing texts for automatic classification and sorting search results — will be described.
SOPAC (Social Online Public Access Catalog) is a module for the Drupal CMS that provides true integration of your library catalog system with the power of the Drupal content management system while allowing users to tag, rate, and review your holdings. User input is then incorporated into the discovery index so that SOPAC becomes a truly community-driven catalog system.
The eXtensible Catalog (XC) Project is working to design and develop a set of open-source applications that will provide libraries with an alternative way to reveal their collections to library users.
‡biblios.net is a web-based original and copy cataloging tool with built in federated search of any Z39.50 target (via an integrated search registry with over 2000 targets - or by adding your own) and a large (30 million strong) shared database of catalog records. This means that you can visit ‡biblios.net and benefit from the work of other catalogers who have gone before you. You can also edit and contribute to the database without any restrictions.