MULtifacet is a Drupal 5 module that wraps a UI around an arbitrary Solr index.
Content Management Framework
SWORD is a lightweight protocol for depositing content from one location to another. It stands for Simple Web-service Offering Repository Deposit and is a profile of the Atom Publishing Protocol (known as APP or ATOMPUB).
SWORD has been funded by the Joint Information Systems Committee (JISC) to develop the SWORD profile and a number of demonstration implementations.
The Library à la Carte Content Management System (CMS) enables librarians to easily and quickly create dynamic web pages that integrate Web 2.0 features, such as chat and RSS feeds, with traditional library content, such as catalogs and article databases. Library à la Carte is a free open-source solution for libraries by libraries.