A new version of the Deweybrowser has appeared. This is a prototype system with some nice features. It is built using Solr and highlights the use of a classification system in retrieval:

The DeweyBrowser, beta version 2.0, has a new interface and updated database. You can search for a topic or drill down through the summaries by clicking on a caption in the Dewey clouds. New features include the ability to filter search results by format, language of resource, and OCLC Audience Level. You can also search within a results set.

The interface provides the option of displaying the captions in one of several languages. Available languages are English, French, German, Norwegian, Spanish, and Swedish.

The prototype provides access to approximately 2.5 million records from the OCLC Worldcat database. The records are indexed and searched using Apache Solr. [About the DeweyBrowser ]