Engines

See also:

BDDBot - A web robot, search engine and web server written in Java and available under GPL. Includes related resources. [Project no longer actively updated]
DataparkSearch Engine Tool - Open source search engine tool released under GPL and designed to organize search within a website, group of websites, intranet or local system.
Egothor - A cross-platform, full-featured text search engine written entirely in Java. It can be configured as a standalone engine, metasearcher, peer-to-peer HUB or used as a class library.
KDE GUISearch - A tool for finding code by looking at the applications' GUI text messages (e.g., "Undo") and returning associated callbacks/slots (e.g., slotUndo()). Allows searching the KDE project CVS repository as a live demonstration.
Nutch - Effort to implement a prototype of an open source web-search engine.
OpenWebSpider - An open source web spider and search engine. Includes demo, source code and screenshots.
Search Tools Listing: Open Source Search Engines - A listing of open source indexers, including links to related articles.
Sphider - A lightweight search engine in PHP. Includes details of features, documentation, support forum, and download. [GPL]

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