PUBLIC MARKS from clochix with tag search

Swoogle is a search engine for the Semantic Web on the Web. Swoogle crawl the World Wide Web for a special class of web documents called Semantic Web documents, which are written in RDF. Currently, it provides the following services to the following services: * search Semantic Web ontologies * search Semantic Web instance data * search Semantic Web terms, i.e., URIs that have been defined as classes and properties * provide metadata of Semantic Web documents and support browsing the Semantic Web. * archive different versions of Semantic Web documents

Ferret is a high-performance, full-featured text search engine library written for Ruby. It is inspired by Apache Lucene Java project.

Solr is an open source enterprise search server based on the Lucene Java search library, with XML/HTTP and JSON APIs, hit highlighting, faceted search, caching, replication, and a web administration interface. It runs in a Java servlet container such as Tomcat.

Sphinx is a full-text search engine, distributed under GPL version 2. Generally, it's a standalone search engine, meant to provide fast, size-efficient and relevant fulltext search functions to other applications. Sphinx was specially designed to integrate well with SQL databases and scripting languages. Currently built-in data sources support fetching data either via direct connection to MySQL, or from an XML pipe.

Zend_Search_Lucene est un moteur de recherche textuel général totalement écrit en PHP 5. Bien qu'il stocke ses index dans le système de fichiers, et ne nécessite pas de base de données, il peut ajouter des capacités de recherche sur presque tous les sites PHP utilisant une base de données. Zend_Search_Lucene supporte les fonctionnalités suivantes : * Recherche par pertinence - les meilleurs résultats sont retournés en premier * Beaucoup de type de puissantes recherche : recherche sur des phrases, recherche joker, recherche de proximité, recherche par intervalle et bien plus [5] * Recherche par champs spécifiques (e.i., titre, auteur, contenu) Zend_Search_Lucene est dérivé du projet Apache Lucene

Yotophoto is the first internet search engine for finding free-to-use photographs and images. Now indexing well over a quarter million Creative Commons, Public Domain, GNU FDL, and various other 'copyleft' images.

A company developping OOS for professional search, semantic middleware, and developer products

Aperture is a Java framework for extracting and querying full-text content and metadata from various information systems (e.g. file systems, web sites, mail boxes) and the file formats (e.g. documents, images) occurring in these systems.